<?xml version="1.0" encoding="UTF-8"?>

<CompactData xmlns="http://www.SDMX.org/resources/SDMXML/schemas/v2_0/message" xmlns:bbk="http://www.bundesbank.de/statistik/zeitreihen/BBKcompact" xmlns:compact="http://www.SDMX.org/resources/SDMXML/schemas/v2_0/compact" xmlns:xsl="http://www.w3.org/2001/XMLSchema-instance" xsl:schemaLocation="http://www.SDMX.org/resources/SDMXML/schemas/v2_0/message schemas/SDMXMessage.xsd http://www.bundesbank.de/statistik/zeitreihen/bbkcompact schemas/BBKCompactData.xsd http://www.SDMX.org/resources/SDMXML/schemas/v2_0/compact schemas/SDMXCompactData.xsd">
  <Header>
    <ID>BBSIS_M_I_ZST_ZI_EUR_S1311_B_A604_R05XX_R_A_A__Z__Z_A</ID>
    <Test>false</Test>
    <Truncated>false</Truncated>
    <Prepared>2026-04-07T21:40:24</Prepared>
    <Sender id="BBK">
      <Name xml:lang="de">Deutsche Bundesbank</Name>
      <Contact>
        <Email>presse-information@bundesbank.de</Email>
      </Contact>
    </Sender>
  </Header>
  <bbk:DataSet datasetID="BBK_SEIS">
    <bbk:Series FREQ="M" BBK_ID="BBSIS.M.I.ZST.ZI.EUR.S1311.B.A604.R05XX.R.A.A._Z._Z.A" DECIMALS="2" UNIT="Prozent" UNIT_MULT="0" BBK_TITLE="Zinsstrukturkurve (Svensson-Methode) / Börsennotierte Bundeswertpapiere / 5,0 Jahr(e) RLZ / Monatswerte" BBK_TITLE_ENG="Term structure of interest rates on listed Federal securities (method by Svensson) / residual maturity of 5.0 years / monthly data">
      <bbk:Obs TIME_PERIOD="2026-03" OBS_VALUE="2.72" BBK_DIFF="20.5" BBK_DIFF_Y="20.7"/>
      <bbk:Obs TIME_PERIOD="2026-02" OBS_VALUE="2.25" BBK_DIFF="-5.5" BBK_DIFF_Y="8.2"/>
      <bbk:Obs TIME_PERIOD="2026-01" OBS_VALUE="2.38" BBK_DIFF="-2.3" BBK_DIFF_Y="8.6"/>
      <bbk:Obs TIME_PERIOD="2025-12" OBS_VALUE="2.44" BBK_DIFF="7.0" BBK_DIFF_Y="14.5"/>
      <bbk:Obs TIME_PERIOD="2025-11" OBS_VALUE="2.28" BBK_DIFF="1.9" BBK_DIFF_Y="19.1"/>
      <bbk:Obs TIME_PERIOD="2025-10" OBS_VALUE="2.24" BBK_DIFF="-2.0" BBK_DIFF_Y="1.4"/>
      <bbk:Obs TIME_PERIOD="2025-09" OBS_VALUE="2.28" BBK_DIFF="3.0" BBK_DIFF_Y="18.2"/>
      <bbk:Obs TIME_PERIOD="2025-08" OBS_VALUE="2.21" BBK_DIFF="-1.5" BBK_DIFF_Y="6.0"/>
      <bbk:Obs TIME_PERIOD="2025-07" OBS_VALUE="2.25" BBK_DIFF="4.6" BBK_DIFF_Y="2.6"/>
      <bbk:Obs TIME_PERIOD="2025-06" OBS_VALUE="2.15" BBK_DIFF="3.3" BBK_DIFF_Y="-10.2"/>
      <bbk:Obs TIME_PERIOD="2025-05" OBS_VALUE="2.08" BBK_DIFF="3.5" BBK_DIFF_Y="-22.5"/>
      <bbk:Obs TIME_PERIOD="2025-04" OBS_VALUE="2.01" BBK_DIFF="-10.7" BBK_DIFF_Y="-20.2"/>
      <bbk:Obs TIME_PERIOD="2025-03" OBS_VALUE="2.25" BBK_DIFF="8.0" BBK_DIFF_Y="-1.8"/>
      <bbk:Obs TIME_PERIOD="2025-02" OBS_VALUE="2.08" BBK_DIFF="-5.1" BBK_DIFF_Y="-15.6"/>
      <bbk:Obs TIME_PERIOD="2025-01" OBS_VALUE="2.19" BBK_DIFF="3.1" BBK_DIFF_Y="6.1"/>
      <bbk:Obs TIME_PERIOD="2024-12" OBS_VALUE="2.13" BBK_DIFF="11.3" BBK_DIFF_Y="14.0"/>
      <bbk:Obs TIME_PERIOD="2024-11" OBS_VALUE="1.91" BBK_DIFF="-13.2" BBK_DIFF_Y="-15.4"/>
      <bbk:Obs TIME_PERIOD="2024-10" OBS_VALUE="2.21" BBK_DIFF="14.2" BBK_DIFF_Y="-15.5"/>
      <bbk:Obs TIME_PERIOD="2024-09" OBS_VALUE="1.93" BBK_DIFF="-7.6" BBK_DIFF_Y="-30.0"/>
      <bbk:Obs TIME_PERIOD="2024-08" OBS_VALUE="2.09" BBK_DIFF="-4.6" BBK_DIFF_Y="-15.3"/>
      <bbk:Obs TIME_PERIOD="2024-07" OBS_VALUE="2.19" BBK_DIFF="-8.5" BBK_DIFF_Y="-13.3"/>
      <bbk:Obs TIME_PERIOD="2024-06" OBS_VALUE="2.39" BBK_DIFF="-10.9" BBK_DIFF_Y="-6.0"/>
      <bbk:Obs TIME_PERIOD="2024-05" OBS_VALUE="2.69" BBK_DIFF="6.7" BBK_DIFF_Y="15.4"/>
      <bbk:Obs TIME_PERIOD="2024-04" OBS_VALUE="2.52" BBK_DIFF="9.9" BBK_DIFF_Y="8.5"/>
      <bbk:Obs TIME_PERIOD="2024-03" OBS_VALUE="2.29" BBK_DIFF="-7.1" BBK_DIFF_Y="-4.2"/>
      <bbk:Obs TIME_PERIOD="2024-02" OBS_VALUE="2.47" BBK_DIFF="19.2" BBK_DIFF_Y="-8.3"/>
      <bbk:Obs TIME_PERIOD="2024-01" OBS_VALUE="2.07" BBK_DIFF="10.8" BBK_DIFF_Y="-8.3"/>
      <bbk:Obs TIME_PERIOD="2023-12" OBS_VALUE="1.87" BBK_DIFF="-17.4" BBK_DIFF_Y="-24.4"/>
      <bbk:Obs TIME_PERIOD="2023-11" OBS_VALUE="2.26" BBK_DIFF="-13.4" BBK_DIFF_Y="17.6"/>
      <bbk:Obs TIME_PERIOD="2023-10" OBS_VALUE="2.61" BBK_DIFF="-5.4" BBK_DIFF_Y="30.7"/>
      <bbk:Obs TIME_PERIOD="2023-09" OBS_VALUE="2.76" BBK_DIFF="11.9" BBK_DIFF_Y="43.8"/>
      <bbk:Obs TIME_PERIOD="2023-08" OBS_VALUE="2.47" BBK_DIFF="-2.4" BBK_DIFF_Y="89.8"/>
      <bbk:Obs TIME_PERIOD="2023-07" OBS_VALUE="2.53" BBK_DIFF="-0.8" BBK_DIFF_Y="381.1"/>
      <bbk:Obs TIME_PERIOD="2023-06" OBS_VALUE="2.55" BBK_DIFF="9.5" BBK_DIFF_Y="146.1"/>
      <bbk:Obs TIME_PERIOD="2023-05" OBS_VALUE="2.33" BBK_DIFF="0.3" BBK_DIFF_Y="203.4"/>
      <bbk:Obs TIME_PERIOD="2023-04" OBS_VALUE="2.32" BBK_DIFF="-3.0" BBK_DIFF_Y="241.0"/>
      <bbk:Obs TIME_PERIOD="2023-03" OBS_VALUE="2.39" BBK_DIFF="-11.1" BBK_DIFF_Y="503.8"/>
      <bbk:Obs TIME_PERIOD="2023-02" OBS_VALUE="2.69" BBK_DIFF="19.3" BBK_DIFF_Y="2661.0"/>
      <bbk:Obs TIME_PERIOD="2023-01" OBS_VALUE="2.25" BBK_DIFF="-8.8" BBK_DIFF_Y="797.8"/>
      <bbk:Obs TIME_PERIOD="2022-12" OBS_VALUE="2.47" BBK_DIFF="28.5" BBK_DIFF_Y="597.2"/>
      <bbk:Obs TIME_PERIOD="2022-11" OBS_VALUE="1.92" BBK_DIFF="-3.7" BBK_DIFF_Y="385.3"/>
      <bbk:Obs TIME_PERIOD="2022-10" OBS_VALUE="2.0" BBK_DIFF="4.1" BBK_DIFF_Y="573.2"/>
      <bbk:Obs TIME_PERIOD="2022-09" OBS_VALUE="1.92" BBK_DIFF="47.7" BBK_DIFF_Y="426.7"/>
      <bbk:Obs TIME_PERIOD="2022-08" OBS_VALUE="1.3" BBK_DIFF="147.4" BBK_DIFF_Y="276.5"/>
      <bbk:Obs TIME_PERIOD="2022-07" OBS_VALUE="0.53" BBK_DIFF="-49.3" BBK_DIFF_Y="167.9"/>
      <bbk:Obs TIME_PERIOD="2022-06" OBS_VALUE="1.03" BBK_DIFF="34.9" BBK_DIFF_Y="276.6"/>
      <bbk:Obs TIME_PERIOD="2022-05" OBS_VALUE="0.77" BBK_DIFF="12.8" BBK_DIFF_Y="235.5"/>
      <bbk:Obs TIME_PERIOD="2022-04" OBS_VALUE="0.68" BBK_DIFF="71.7" BBK_DIFF_Y="215.8"/>
      <bbk:Obs TIME_PERIOD="2022-03" OBS_VALUE="0.4" BBK_DIFF="477.1" BBK_DIFF_Y="162.5"/>
      <bbk:Obs TIME_PERIOD="2022-02" OBS_VALUE="-0.11" BBK_DIFF="67.5" BBK_DIFF_Y="81.8"/>
      <bbk:Obs TIME_PERIOD="2022-01" OBS_VALUE="-0.32" BBK_DIFF="35.0" BBK_DIFF_Y="57.2"/>
      <bbk:Obs TIME_PERIOD="2021-12" OBS_VALUE="-0.5" BBK_DIFF="26.3" BBK_DIFF_Y="33.6"/>
      <bbk:Obs TIME_PERIOD="2021-11" OBS_VALUE="-0.67" BBK_DIFF="-59.7" BBK_DIFF_Y="13.6"/>
      <bbk:Obs TIME_PERIOD="2021-10" OBS_VALUE="-0.42" BBK_DIFF="28.1" BBK_DIFF_Y="50.1"/>
      <bbk:Obs TIME_PERIOD="2021-09" OBS_VALUE="-0.59" BBK_DIFF="20.2" BBK_DIFF_Y="21.5"/>
      <bbk:Obs TIME_PERIOD="2021-08" OBS_VALUE="-0.74" BBK_DIFF="4.8" BBK_DIFF_Y="-13.4"/>
      <bbk:Obs TIME_PERIOD="2021-07" OBS_VALUE="-0.77" BBK_DIFF="-31.9" BBK_DIFF_Y="-1.6"/>
      <bbk:Obs TIME_PERIOD="2021-06" OBS_VALUE="-0.59" BBK_DIFF="-3.5" BBK_DIFF_Y="18.3"/>
      <bbk:Obs TIME_PERIOD="2021-05" OBS_VALUE="-0.57" BBK_DIFF="3.6" BBK_DIFF_Y="9.4"/>
      <bbk:Obs TIME_PERIOD="2021-04" OBS_VALUE="-0.59" BBK_DIFF="7.4" BBK_DIFF_Y="16.6"/>
      <bbk:Obs TIME_PERIOD="2021-03" OBS_VALUE="-0.63" BBK_DIFF="-9.7" BBK_DIFF_Y="6.2"/>
      <bbk:Obs TIME_PERIOD="2021-02" OBS_VALUE="-0.58" BBK_DIFF="23.4" BBK_DIFF_Y="25.0"/>
      <bbk:Obs TIME_PERIOD="2021-01" OBS_VALUE="-0.76" BBK_DIFF="-0.9" BBK_DIFF_Y="-17.4"/>
      <bbk:Obs TIME_PERIOD="2020-12" OBS_VALUE="-0.75" BBK_DIFF="4.1" BBK_DIFF_Y="-52.3"/>
      <bbk:Obs TIME_PERIOD="2020-11" OBS_VALUE="-0.78" BBK_DIFF="7.8" BBK_DIFF_Y="-28.9"/>
      <bbk:Obs TIME_PERIOD="2020-10" OBS_VALUE="-0.85" BBK_DIFF="-13.1" BBK_DIFF_Y="-32.2"/>
      <bbk:Obs TIME_PERIOD="2020-09" OBS_VALUE="-0.75" BBK_DIFF="-15.3" BBK_DIFF_Y="3.7"/>
      <bbk:Obs TIME_PERIOD="2020-08" OBS_VALUE="-0.65" BBK_DIFF="14.7" BBK_DIFF_Y="30.2"/>
      <bbk:Obs TIME_PERIOD="2020-07" OBS_VALUE="-0.76" BBK_DIFF="-6.1" BBK_DIFF_Y="-4.4"/>
      <bbk:Obs TIME_PERIOD="2020-06" OBS_VALUE="-0.72" BBK_DIFF="-14.7" BBK_DIFF_Y="-9.1"/>
      <bbk:Obs TIME_PERIOD="2020-05" OBS_VALUE="-0.63" BBK_DIFF="11.2" BBK_DIFF_Y="-5.2"/>
      <bbk:Obs TIME_PERIOD="2020-04" OBS_VALUE="-0.7" BBK_DIFF="-4.1" BBK_DIFF_Y="-72.1"/>
      <bbk:Obs TIME_PERIOD="2020-03" OBS_VALUE="-0.68" BBK_DIFF="12.3" BBK_DIFF_Y="-45.1"/>
      <bbk:Obs TIME_PERIOD="2020-02" OBS_VALUE="-0.77" BBK_DIFF="-19.9" BBK_DIFF_Y="-139.4"/>
      <bbk:Obs TIME_PERIOD="2020-01" OBS_VALUE="-0.64" BBK_DIFF="-31.0" BBK_DIFF_Y="-96.6"/>
      <bbk:Obs TIME_PERIOD="2019-12" OBS_VALUE="-0.49" BBK_DIFF="18.8" BBK_DIFF_Y="-58.9"/>
      <bbk:Obs TIME_PERIOD="2019-11" OBS_VALUE="-0.61" BBK_DIFF="5.5" BBK_DIFF_Y="-134.5"/>
      <bbk:Obs TIME_PERIOD="2019-10" OBS_VALUE="-0.64" BBK_DIFF="17.6" BBK_DIFF_Y="-224.9"/>
      <bbk:Obs TIME_PERIOD="2019-09" OBS_VALUE="-0.78" BBK_DIFF="16.5" BBK_DIFF_Y="-753.8"/>
      <bbk:Obs TIME_PERIOD="2019-08" OBS_VALUE="-0.93" BBK_DIFF="-27.6" BBK_DIFF_Y="-279.6"/>
      <bbk:Obs TIME_PERIOD="2019-07" OBS_VALUE="-0.73" BBK_DIFF="-11.0" BBK_DIFF_Y="-289.8"/>
      <bbk:Obs TIME_PERIOD="2019-06" OBS_VALUE="-0.66" BBK_DIFF="-10.6" BBK_DIFF_Y="-163.9"/>
      <bbk:Obs TIME_PERIOD="2019-05" OBS_VALUE="-0.59" BBK_DIFF="-45.2" BBK_DIFF_Y="-164.0"/>
      <bbk:Obs TIME_PERIOD="2019-04" OBS_VALUE="-0.41" BBK_DIFF="12.2" BBK_DIFF_Y="-643.6"/>
      <bbk:Obs TIME_PERIOD="2019-03" OBS_VALUE="-0.47" BBK_DIFF="-44.7" BBK_DIFF_Y="-308.8"/>
      <bbk:Obs TIME_PERIOD="2019-02" OBS_VALUE="-0.32" BBK_DIFF="1.5" BBK_DIFF_Y="-1888.9"/>
      <bbk:Obs TIME_PERIOD="2019-01" OBS_VALUE="-0.33" BBK_DIFF="-5.8" BBK_DIFF_Y="-1267.9"/>
      <bbk:Obs TIME_PERIOD="2018-12" OBS_VALUE="-0.31" BBK_DIFF="-19.8" BBK_DIFF_Y="-72.6"/>
      <bbk:Obs TIME_PERIOD="2018-11" OBS_VALUE="-0.26" BBK_DIFF="-31.0" BBK_DIFF_Y="10.1"/>
      <bbk:Obs TIME_PERIOD="2018-10" OBS_VALUE="-0.2" BBK_DIFF="-116.5" BBK_DIFF_Y="44.4"/>
      <bbk:Obs TIME_PERIOD="2018-09" OBS_VALUE="-0.09" BBK_DIFF="62.9" BBK_DIFF_Y="69.2"/>
      <bbk:Obs TIME_PERIOD="2018-08" OBS_VALUE="-0.25" BBK_DIFF="-31.0" BBK_DIFF_Y="33.8"/>
      <bbk:Obs TIME_PERIOD="2018-07" OBS_VALUE="-0.19" BBK_DIFF="24.9" BBK_DIFF_Y="18.3"/>
      <bbk:Obs TIME_PERIOD="2018-06" OBS_VALUE="-0.25" BBK_DIFF="-10.7" BBK_DIFF_Y="-7.3"/>
      <bbk:Obs TIME_PERIOD="2018-05" OBS_VALUE="-0.23" BBK_DIFF="-309.1" BBK_DIFF_Y="45.9"/>
      <bbk:Obs TIME_PERIOD="2018-04" OBS_VALUE="-0.06" BBK_DIFF="51.8" BBK_DIFF_Y="84.9"/>
      <bbk:Obs TIME_PERIOD="2018-03" OBS_VALUE="-0.11" BBK_DIFF="-733.3" BBK_DIFF_Y="70.5"/>
      <bbk:Obs TIME_PERIOD="2018-02" OBS_VALUE="0.02" BBK_DIFF="-35.7" BBK_DIFF_Y="103.1"/>
      <bbk:Obs TIME_PERIOD="2018-01" OBS_VALUE="0.03" BBK_DIFF="115.6" BBK_DIFF_Y="108.9"/>
      <bbk:Obs TIME_PERIOD="2017-12" OBS_VALUE="-0.18" BBK_DIFF="37.6" BBK_DIFF_Y="64.8"/>
      <bbk:Obs TIME_PERIOD="2017-11" OBS_VALUE="-0.29" BBK_DIFF="18.9" BBK_DIFF_Y="35.9"/>
      <bbk:Obs TIME_PERIOD="2017-10" OBS_VALUE="-0.35" BBK_DIFF="-20.0" BBK_DIFF_Y="15.1"/>
      <bbk:Obs TIME_PERIOD="2017-09" OBS_VALUE="-0.3" BBK_DIFF="20.3" BBK_DIFF_Y="53.5"/>
      <bbk:Obs TIME_PERIOD="2017-08" OBS_VALUE="-0.37" BBK_DIFF="-61.6" BBK_DIFF_Y="34.0"/>
      <bbk:Obs TIME_PERIOD="2017-07" OBS_VALUE="-0.23" BBK_DIFF="1.3" BBK_DIFF_Y="57.9"/>
      <bbk:Obs TIME_PERIOD="2017-06" OBS_VALUE="-0.23" BBK_DIFF="44.2" BBK_DIFF_Y="57.7"/>
      <bbk:Obs TIME_PERIOD="2017-05" OBS_VALUE="-0.42" BBK_DIFF="-14.0" BBK_DIFF_Y="-10.3"/>
      <bbk:Obs TIME_PERIOD="2017-04" OBS_VALUE="-0.37" BBK_DIFF="5.7" BBK_DIFF_Y="-9.3"/>
      <bbk:Obs TIME_PERIOD="2017-03" OBS_VALUE="-0.39" BBK_DIFF="34.0" BBK_DIFF_Y="-9.0"/>
      <bbk:Obs TIME_PERIOD="2017-02" OBS_VALUE="-0.59" BBK_DIFF="-86.6" BBK_DIFF_Y="-41.2"/>
      <bbk:Obs TIME_PERIOD="2017-01" OBS_VALUE="-0.31" BBK_DIFF="38.2" BBK_DIFF_Y="-18.9"/>
      <bbk:Obs TIME_PERIOD="2016-12" OBS_VALUE="-0.51" BBK_DIFF="-13.4" BBK_DIFF_Y="-4133.3"/>
      <bbk:Obs TIME_PERIOD="2016-11" OBS_VALUE="-0.45" BBK_DIFF="-7.4" BBK_DIFF_Y="-147.5"/>
      <bbk:Obs TIME_PERIOD="2016-10" OBS_VALUE="-0.42" BBK_DIFF="34.2" BBK_DIFF_Y="-334.4"/>
      <bbk:Obs TIME_PERIOD="2016-09" OBS_VALUE="-0.63" BBK_DIFF="-13.0" BBK_DIFF_Y="-12580.0"/>
      <bbk:Obs TIME_PERIOD="2016-08" OBS_VALUE="-0.56" BBK_DIFF="-3.1" BBK_DIFF_Y="-925.0"/>
      <bbk:Obs TIME_PERIOD="2016-07" OBS_VALUE="-0.54" BBK_DIFF="0.7" BBK_DIFF_Y="-2192.3"/>
      <bbk:Obs TIME_PERIOD="2016-06" OBS_VALUE="-0.55" BBK_DIFF="-45.4" BBK_DIFF_Y="-593.7"/>
      <bbk:Obs TIME_PERIOD="2016-05" OBS_VALUE="-0.38" BBK_DIFF="-12.9" BBK_DIFF_Y="-3870.0"/>
      <bbk:Obs TIME_PERIOD="2016-04" OBS_VALUE="-0.33" BBK_DIFF="5.9" BBK_DIFF_Y="-1987.5"/>
      <bbk:Obs TIME_PERIOD="2016-03" OBS_VALUE="-0.36" BBK_DIFF="14.5" BBK_DIFF_Y="-217.0"/>
      <bbk:Obs TIME_PERIOD="2016-02" OBS_VALUE="-0.42" BBK_DIFF="-57.2" BBK_DIFF_Y="-254.7"/>
      <bbk:Obs TIME_PERIOD="2016-01" OBS_VALUE="-0.26" BBK_DIFF="-2100.0" BBK_DIFF_Y="-300.0"/>
      <bbk:Obs TIME_PERIOD="2015-12" OBS_VALUE="-0.01" BBK_DIFF="93.4" BBK_DIFF_Y="-175.0"/>
      <bbk:Obs TIME_PERIOD="2015-11" OBS_VALUE="-0.18" BBK_DIFF="-88.5" BBK_DIFF_Y="-288.5"/>
      <bbk:Obs TIME_PERIOD="2015-10" OBS_VALUE="-0.1" BBK_DIFF="-1820.0" BBK_DIFF_Y="-165.8"/>
      <bbk:Obs TIME_PERIOD="2015-09" OBS_VALUE="-0.01" BBK_DIFF="-107.4" BBK_DIFF_Y="-102.7"/>
      <bbk:Obs TIME_PERIOD="2015-08" OBS_VALUE="0.07" BBK_DIFF="161.5" BBK_DIFF_Y="-70.0"/>
      <bbk:Obs TIME_PERIOD="2015-07" OBS_VALUE="0.03" BBK_DIFF="-76.6" BBK_DIFF_Y="-92.5"/>
      <bbk:Obs TIME_PERIOD="2015-06" OBS_VALUE="0.11" BBK_DIFF="1010.0" BBK_DIFF_Y="-70.9"/>
      <bbk:Obs TIME_PERIOD="2015-05" OBS_VALUE="0.01" BBK_DIFF="162.5" BBK_DIFF_Y="-97.7"/>
      <bbk:Obs TIME_PERIOD="2015-04" OBS_VALUE="-0.02" BBK_DIFF="85.7" BBK_DIFF_Y="-102.7"/>
      <bbk:Obs TIME_PERIOD="2015-03" OBS_VALUE="-0.11" BBK_DIFF="4.3" BBK_DIFF_Y="-118.5"/>
      <bbk:Obs TIME_PERIOD="2015-02" OBS_VALUE="-0.12" BBK_DIFF="-77.3" BBK_DIFF_Y="-119.2"/>
      <bbk:Obs TIME_PERIOD="2015-01" OBS_VALUE="-0.07" BBK_DIFF="-512.5" BBK_DIFF_Y="-110.8"/>
      <bbk:Obs TIME_PERIOD="2014-12" OBS_VALUE="0.02" BBK_DIFF="-83.3" BBK_DIFF_Y="-98.3"/>
      <bbk:Obs TIME_PERIOD="2014-11" OBS_VALUE="0.1" BBK_DIFF="-34.2" BBK_DIFF_Y="-85.5"/>
      <bbk:Obs TIME_PERIOD="2014-10" OBS_VALUE="0.15" BBK_DIFF="-21.1" BBK_DIFF_Y="-77.5"/>
      <bbk:Obs TIME_PERIOD="2014-09" OBS_VALUE="0.19" BBK_DIFF="-18.5" BBK_DIFF_Y="-73.0"/>
      <bbk:Obs TIME_PERIOD="2014-08" OBS_VALUE="0.23" BBK_DIFF="-34.2" BBK_DIFF_Y="-73.3"/>
      <bbk:Obs TIME_PERIOD="2014-07" OBS_VALUE="0.35" BBK_DIFF="-9.7" BBK_DIFF_Y="-51.7"/>
      <bbk:Obs TIME_PERIOD="2014-06" OBS_VALUE="0.38" BBK_DIFF="-13.2" BBK_DIFF_Y="-48.6"/>
      <bbk:Obs TIME_PERIOD="2014-05" OBS_VALUE="0.44" BBK_DIFF="-26.9" BBK_DIFF_Y="-11.5"/>
      <bbk:Obs TIME_PERIOD="2014-04" OBS_VALUE="0.6" BBK_DIFF="-0.8" BBK_DIFF_Y="71.0"/>
      <bbk:Obs TIME_PERIOD="2014-03" OBS_VALUE="0.61" BBK_DIFF="-0.3" BBK_DIFF_Y="95.2"/>
      <bbk:Obs TIME_PERIOD="2014-02" OBS_VALUE="0.61" BBK_DIFF="-0.2" BBK_DIFF_Y="25.8"/>
      <bbk:Obs TIME_PERIOD="2014-01" OBS_VALUE="0.61" BBK_DIFF="-35.7" BBK_DIFF_Y="-20.4"/>
      <bbk:Obs TIME_PERIOD="2013-12" OBS_VALUE="0.95" BBK_DIFF="42.8" BBK_DIFF_Y="146.2"/>
      <bbk:Obs TIME_PERIOD="2013-11" OBS_VALUE="0.66" BBK_DIFF="2.2" BBK_DIFF_Y="48.9"/>
      <bbk:Obs TIME_PERIOD="2013-10" OBS_VALUE="0.65" BBK_DIFF="-5.2" BBK_DIFF_Y="18.6"/>
      <bbk:Obs TIME_PERIOD="2013-09" OBS_VALUE="0.69" BBK_DIFF="-19.2" BBK_DIFF_Y="30.2"/>
      <bbk:Obs TIME_PERIOD="2013-08" OBS_VALUE="0.85" BBK_DIFF="18.9" BBK_DIFF_Y="93.0"/>
      <bbk:Obs TIME_PERIOD="2013-07" OBS_VALUE="0.71" BBK_DIFF="-3.9" BBK_DIFF_Y="74.6"/>
      <bbk:Obs TIME_PERIOD="2013-06" OBS_VALUE="0.74" BBK_DIFF="49.5" BBK_DIFF_Y="8.6"/>
      <bbk:Obs TIME_PERIOD="2013-05" OBS_VALUE="0.5" BBK_DIFF="41.2" BBK_DIFF_Y="11.9"/>
      <bbk:Obs TIME_PERIOD="2013-04" OBS_VALUE="0.35" BBK_DIFF="13.2" BBK_DIFF_Y="-47.0"/>
      <bbk:Obs TIME_PERIOD="2013-03" OBS_VALUE="0.31" BBK_DIFF="-35.7" BBK_DIFF_Y="-64.0"/>
      <bbk:Obs TIME_PERIOD="2013-02" OBS_VALUE="0.48" BBK_DIFF="-36.8" BBK_DIFF_Y="-42.9"/>
      <bbk:Obs TIME_PERIOD="2013-01" OBS_VALUE="0.77" BBK_DIFF="99.0" BBK_DIFF_Y="-8.7"/>
      <bbk:Obs TIME_PERIOD="2012-12" OBS_VALUE="0.39" BBK_DIFF="-13.7" BBK_DIFF_Y="-55.9"/>
      <bbk:Obs TIME_PERIOD="2012-11" OBS_VALUE="0.45" BBK_DIFF="-18.6" BBK_DIFF_Y="-66.1"/>
      <bbk:Obs TIME_PERIOD="2012-10" OBS_VALUE="0.55" BBK_DIFF="4.0" BBK_DIFF_Y="-56.7"/>
      <bbk:Obs TIME_PERIOD="2012-09" OBS_VALUE="0.53" BBK_DIFF="19.8" BBK_DIFF_Y="-57.5"/>
      <bbk:Obs TIME_PERIOD="2012-08" OBS_VALUE="0.44" BBK_DIFF="7.6" BBK_DIFF_Y="-67.6"/>
      <bbk:Obs TIME_PERIOD="2012-07" OBS_VALUE="0.41" BBK_DIFF="-40.2" BBK_DIFF_Y="-78.1"/>
      <bbk:Obs TIME_PERIOD="2012-06" OBS_VALUE="0.68" BBK_DIFF="54.1" BBK_DIFF_Y="-69.9"/>
      <bbk:Obs TIME_PERIOD="2012-05" OBS_VALUE="0.44" BBK_DIFF="-33.1" BBK_DIFF_Y="-81.3"/>
      <bbk:Obs TIME_PERIOD="2012-04" OBS_VALUE="0.66" BBK_DIFF="-23.1" BBK_DIFF_Y="-75.1"/>
      <bbk:Obs TIME_PERIOD="2012-03" OBS_VALUE="0.86" BBK_DIFF="1.8" BBK_DIFF_Y="-68.2"/>
      <bbk:Obs TIME_PERIOD="2012-02" OBS_VALUE="0.85" BBK_DIFF="1.1" BBK_DIFF_Y="-64.7"/>
      <bbk:Obs TIME_PERIOD="2012-01" OBS_VALUE="0.84" BBK_DIFF="-3.9" BBK_DIFF_Y="-65.6"/>
      <bbk:Obs TIME_PERIOD="2011-12" OBS_VALUE="0.87" BBK_DIFF="-33.7" BBK_DIFF_Y="-56.1"/>
      <bbk:Obs TIME_PERIOD="2011-11" OBS_VALUE="1.32" BBK_DIFF="4.1" BBK_DIFF_Y="-27.0"/>
      <bbk:Obs TIME_PERIOD="2011-10" OBS_VALUE="1.26" BBK_DIFF="2.1" BBK_DIFF_Y="-29.0"/>
      <bbk:Obs TIME_PERIOD="2011-09" OBS_VALUE="1.24" BBK_DIFF="-8.7" BBK_DIFF_Y="-16.2"/>
      <bbk:Obs TIME_PERIOD="2011-08" OBS_VALUE="1.36" BBK_DIFF="-27.5" BBK_DIFF_Y="2.7"/>
      <bbk:Obs TIME_PERIOD="2011-07" OBS_VALUE="1.87" BBK_DIFF="-17.6" BBK_DIFF_Y="5.1"/>
      <bbk:Obs TIME_PERIOD="2011-06" OBS_VALUE="2.27" BBK_DIFF="-4.6" BBK_DIFF_Y="47.9"/>
      <bbk:Obs TIME_PERIOD="2011-05" OBS_VALUE="2.38" BBK_DIFF="-10.8" BBK_DIFF_Y="47.6"/>
      <bbk:Obs TIME_PERIOD="2011-04" OBS_VALUE="2.67" BBK_DIFF="-1.6" BBK_DIFF_Y="29.1"/>
      <bbk:Obs TIME_PERIOD="2011-03" OBS_VALUE="2.71" BBK_DIFF="13.0" BBK_DIFF_Y="23.6"/>
      <bbk:Obs TIME_PERIOD="2011-02" OBS_VALUE="2.4" BBK_DIFF="-1.5" BBK_DIFF_Y="10.8"/>
      <bbk:Obs TIME_PERIOD="2011-01" OBS_VALUE="2.44" BBK_DIFF="22.5" BBK_DIFF_Y="4.7"/>
      <bbk:Obs TIME_PERIOD="2010-12" OBS_VALUE="1.99" BBK_DIFF="10.4" BBK_DIFF_Y="-20.9"/>
      <bbk:Obs TIME_PERIOD="2010-11" OBS_VALUE="1.8" BBK_DIFF="1.2" BBK_DIFF_Y="-22.4"/>
      <bbk:Obs TIME_PERIOD="2010-10" OBS_VALUE="1.78" BBK_DIFF="20.4" BBK_DIFF_Y="-29.7"/>
      <bbk:Obs TIME_PERIOD="2010-09" OBS_VALUE="1.48" BBK_DIFF="12.0" BBK_DIFF_Y="-41.4"/>
      <bbk:Obs TIME_PERIOD="2010-08" OBS_VALUE="1.32" BBK_DIFF="-25.8" BBK_DIFF_Y="-48.6"/>
      <bbk:Obs TIME_PERIOD="2010-07" OBS_VALUE="1.78" BBK_DIFF="16.0" BBK_DIFF_Y="-31.9"/>
      <bbk:Obs TIME_PERIOD="2010-06" OBS_VALUE="1.54" BBK_DIFF="-4.8" BBK_DIFF_Y="-41.1"/>
      <bbk:Obs TIME_PERIOD="2010-05" OBS_VALUE="1.61" BBK_DIFF="-22.0" BBK_DIFF_Y="-41.0"/>
      <bbk:Obs TIME_PERIOD="2010-04" OBS_VALUE="2.07" BBK_DIFF="-5.8" BBK_DIFF_Y="-16.5"/>
      <bbk:Obs TIME_PERIOD="2010-03" OBS_VALUE="2.19" BBK_DIFF="1.3" BBK_DIFF_Y="-4.2"/>
      <bbk:Obs TIME_PERIOD="2010-02" OBS_VALUE="2.17" BBK_DIFF="-6.9" BBK_DIFF_Y="-6.7"/>
      <bbk:Obs TIME_PERIOD="2010-01" OBS_VALUE="2.33" BBK_DIFF="-7.4" BBK_DIFF_Y="-9.5"/>
      <bbk:Obs TIME_PERIOD="2009-12" OBS_VALUE="2.52" BBK_DIFF="8.3" BBK_DIFF_Y="2.1"/>
      <bbk:Obs TIME_PERIOD="2009-11" OBS_VALUE="2.32" BBK_DIFF="-8.4" BBK_DIFF_Y="-14.0"/>
      <bbk:Obs TIME_PERIOD="2009-10" OBS_VALUE="2.54" BBK_DIFF="0.4" BBK_DIFF_Y="-21.4"/>
      <bbk:Obs TIME_PERIOD="2009-09" OBS_VALUE="2.53" BBK_DIFF="-1.8" BBK_DIFF_Y="-32.2"/>
      <bbk:Obs TIME_PERIOD="2009-08" OBS_VALUE="2.57" BBK_DIFF="-1.6" BBK_DIFF_Y="-36.1"/>
      <bbk:Obs TIME_PERIOD="2009-07" OBS_VALUE="2.61" BBK_DIFF="0.2" BBK_DIFF_Y="-40.1"/>
      <bbk:Obs TIME_PERIOD="2009-06" OBS_VALUE="2.61" BBK_DIFF="-4.6" BBK_DIFF_Y="-42.9"/>
      <bbk:Obs TIME_PERIOD="2009-05" OBS_VALUE="2.73" BBK_DIFF="10.4" BBK_DIFF_Y="-36.7"/>
      <bbk:Obs TIME_PERIOD="2009-04" OBS_VALUE="2.48" BBK_DIFF="8.1" BBK_DIFF_Y="-37.7"/>
      <bbk:Obs TIME_PERIOD="2009-03" OBS_VALUE="2.29" BBK_DIFF="-1.3" BBK_DIFF_Y="-38.0"/>
      <bbk:Obs TIME_PERIOD="2009-02" OBS_VALUE="2.32" BBK_DIFF="-9.7" BBK_DIFF_Y="-32.9"/>
      <bbk:Obs TIME_PERIOD="2009-01" OBS_VALUE="2.57" BBK_DIFF="4.4" BBK_DIFF_Y="-29.1"/>
      <bbk:Obs TIME_PERIOD="2008-12" OBS_VALUE="2.46" BBK_DIFF="-8.8" BBK_DIFF_Y="-41.3"/>
      <bbk:Obs TIME_PERIOD="2008-11" OBS_VALUE="2.7" BBK_DIFF="-16.2" BBK_DIFF_Y="-30.7"/>
      <bbk:Obs TIME_PERIOD="2008-10" OBS_VALUE="3.22" BBK_DIFF="-13.4" BBK_DIFF_Y="-21.6"/>
      <bbk:Obs TIME_PERIOD="2008-09" OBS_VALUE="3.72" BBK_DIFF="-7.5" BBK_DIFF_Y="-11.8"/>
      <bbk:Obs TIME_PERIOD="2008-08" OBS_VALUE="4.03" BBK_DIFF="-7.7" BBK_DIFF_Y="-3.3"/>
      <bbk:Obs TIME_PERIOD="2008-07" OBS_VALUE="4.36" BBK_DIFF="-4.4" BBK_DIFF_Y="1.1"/>
      <bbk:Obs TIME_PERIOD="2008-06" OBS_VALUE="4.57" BBK_DIFF="5.8" BBK_DIFF_Y="1.0"/>
      <bbk:Obs TIME_PERIOD="2008-05" OBS_VALUE="4.32" BBK_DIFF="8.6" BBK_DIFF_Y="-1.6"/>
      <bbk:Obs TIME_PERIOD="2008-04" OBS_VALUE="3.98" BBK_DIFF="7.6" BBK_DIFF_Y="-4.9"/>
      <bbk:Obs TIME_PERIOD="2008-03" OBS_VALUE="3.69" BBK_DIFF="6.8" BBK_DIFF_Y="-7.8"/>
      <bbk:Obs TIME_PERIOD="2008-02" OBS_VALUE="3.46" BBK_DIFF="-4.6" BBK_DIFF_Y="-11.2"/>
      <bbk:Obs TIME_PERIOD="2008-01" OBS_VALUE="3.63" BBK_DIFF="-13.6" BBK_DIFF_Y="-10.2"/>
      <bbk:Obs TIME_PERIOD="2007-12" OBS_VALUE="4.2" BBK_DIFF="7.7" BBK_DIFF_Y="7.3"/>
      <bbk:Obs TIME_PERIOD="2007-11" OBS_VALUE="3.9" BBK_DIFF="-5.2" BBK_DIFF_Y="6.5"/>
      <bbk:Obs TIME_PERIOD="2007-10" OBS_VALUE="4.11" BBK_DIFF="-2.6" BBK_DIFF_Y="10.0"/>
      <bbk:Obs TIME_PERIOD="2007-09" OBS_VALUE="4.22" BBK_DIFF="1.3" BBK_DIFF_Y="17.8"/>
      <bbk:Obs TIME_PERIOD="2007-08" OBS_VALUE="4.16" BBK_DIFF="-3.5" BBK_DIFF_Y="14.6"/>
      <bbk:Obs TIME_PERIOD="2007-07" OBS_VALUE="4.32" BBK_DIFF="-4.5" BBK_DIFF_Y="15.6"/>
      <bbk:Obs TIME_PERIOD="2007-06" OBS_VALUE="4.52" BBK_DIFF="3.1" BBK_DIFF_Y="16.5"/>
      <bbk:Obs TIME_PERIOD="2007-05" OBS_VALUE="4.39" BBK_DIFF="5.0" BBK_DIFF_Y="18.6"/>
      <bbk:Obs TIME_PERIOD="2007-04" OBS_VALUE="4.18" BBK_DIFF="4.3" BBK_DIFF_Y="10.2"/>
      <bbk:Obs TIME_PERIOD="2007-03" OBS_VALUE="4.0" BBK_DIFF="2.8" BBK_DIFF_Y="11.7"/>
      <bbk:Obs TIME_PERIOD="2007-02" OBS_VALUE="3.9" BBK_DIFF="-3.6" BBK_DIFF_Y="17.5"/>
      <bbk:Obs TIME_PERIOD="2007-01" OBS_VALUE="4.04" BBK_DIFF="3.2" BBK_DIFF_Y="23.3"/>
      <bbk:Obs TIME_PERIOD="2006-12" OBS_VALUE="3.91" BBK_DIFF="6.9" BBK_DIFF_Y="26.8"/>
      <bbk:Obs TIME_PERIOD="2006-11" OBS_VALUE="3.66" BBK_DIFF="-2.1" BBK_DIFF_Y="17.4"/>
      <bbk:Obs TIME_PERIOD="2006-10" OBS_VALUE="3.74" BBK_DIFF="4.4" BBK_DIFF_Y="22.1"/>
      <bbk:Obs TIME_PERIOD="2006-09" OBS_VALUE="3.58" BBK_DIFF="-1.4" BBK_DIFF_Y="28.3"/>
      <bbk:Obs TIME_PERIOD="2006-08" OBS_VALUE="3.63" BBK_DIFF="-2.7" BBK_DIFF_Y="36.8"/>
      <bbk:Obs TIME_PERIOD="2006-07" OBS_VALUE="3.74" BBK_DIFF="-3.8" BBK_DIFF_Y="37.7"/>
      <bbk:Obs TIME_PERIOD="2006-06" OBS_VALUE="3.88" BBK_DIFF="4.9" BBK_DIFF_Y="51.6"/>
      <bbk:Obs TIME_PERIOD="2006-05" OBS_VALUE="3.7" BBK_DIFF="-2.4" BBK_DIFF_Y="36.1"/>
      <bbk:Obs TIME_PERIOD="2006-04" OBS_VALUE="3.79" BBK_DIFF="5.7" BBK_DIFF_Y="33.2"/>
      <bbk:Obs TIME_PERIOD="2006-03" OBS_VALUE="3.59" BBK_DIFF="8.1" BBK_DIFF_Y="13.4"/>
      <bbk:Obs TIME_PERIOD="2006-02" OBS_VALUE="3.32" BBK_DIFF="1.2" BBK_DIFF_Y="4.4"/>
      <bbk:Obs TIME_PERIOD="2006-01" OBS_VALUE="3.28" BBK_DIFF="6.2" BBK_DIFF_Y="8.4"/>
      <bbk:Obs TIME_PERIOD="2005-12" OBS_VALUE="3.08" BBK_DIFF="-1.1" BBK_DIFF_Y="-1.7"/>
      <bbk:Obs TIME_PERIOD="2005-11" OBS_VALUE="3.12" BBK_DIFF="1.8" BBK_DIFF_Y="0.5"/>
      <bbk:Obs TIME_PERIOD="2005-10" OBS_VALUE="3.06" BBK_DIFF="9.6" BBK_DIFF_Y="-5.3"/>
      <bbk:Obs TIME_PERIOD="2005-09" OBS_VALUE="2.79" BBK_DIFF="5.2" BBK_DIFF_Y="-17.1"/>
      <bbk:Obs TIME_PERIOD="2005-08" OBS_VALUE="2.66" BBK_DIFF="-2.1" BBK_DIFF_Y="-22.2"/>
      <bbk:Obs TIME_PERIOD="2005-07" OBS_VALUE="2.71" BBK_DIFF="5.9" BBK_DIFF_Y="-24.6"/>
      <bbk:Obs TIME_PERIOD="2005-06" OBS_VALUE="2.56" BBK_DIFF="-5.8" BBK_DIFF_Y="-30.7"/>
      <bbk:Obs TIME_PERIOD="2005-05" OBS_VALUE="2.72" BBK_DIFF="-4.5" BBK_DIFF_Y="-24.6"/>
      <bbk:Obs TIME_PERIOD="2005-04" OBS_VALUE="2.85" BBK_DIFF="-9.9" BBK_DIFF_Y="-19.2"/>
      <bbk:Obs TIME_PERIOD="2005-03" OBS_VALUE="3.16" BBK_DIFF="-0.5" BBK_DIFF_Y="0.1"/>
      <bbk:Obs TIME_PERIOD="2005-02" OBS_VALUE="3.18" BBK_DIFF="5.1" BBK_DIFF_Y="-2.3"/>
      <bbk:Obs TIME_PERIOD="2005-01" OBS_VALUE="3.02" BBK_DIFF="-3.7" BBK_DIFF_Y="-15.0"/>
      <bbk:Obs TIME_PERIOD="2004-12" OBS_VALUE="3.14" BBK_DIFF="1.2" BBK_DIFF_Y="-13.3"/>
      <bbk:Obs TIME_PERIOD="2004-11" OBS_VALUE="3.1" BBK_DIFF="-4.1" BBK_DIFF_Y="-18.5"/>
      <bbk:Obs TIME_PERIOD="2004-10" OBS_VALUE="3.23" BBK_DIFF="-4.0" BBK_DIFF_Y="-12.7"/>
      <bbk:Obs TIME_PERIOD="2004-09" OBS_VALUE="3.37" BBK_DIFF="-1.3" BBK_DIFF_Y="2.8"/>
      <bbk:Obs TIME_PERIOD="2004-08" OBS_VALUE="3.41" BBK_DIFF="-5.1" BBK_DIFF_Y="-3.7"/>
      <bbk:Obs TIME_PERIOD="2004-07" OBS_VALUE="3.6" BBK_DIFF="-2.7" BBK_DIFF_Y="8.4"/>
      <bbk:Obs TIME_PERIOD="2004-06" OBS_VALUE="3.7" BBK_DIFF="2.5" BBK_DIFF_Y="20.7"/>
      <bbk:Obs TIME_PERIOD="2004-05" OBS_VALUE="3.61" BBK_DIFF="2.4" BBK_DIFF_Y="24.3"/>
      <bbk:Obs TIME_PERIOD="2004-04" OBS_VALUE="3.52" BBK_DIFF="11.6" BBK_DIFF_Y="3.9"/>
      <bbk:Obs TIME_PERIOD="2004-03" OBS_VALUE="3.16" BBK_DIFF="-2.9" BBK_DIFF_Y="-5.4"/>
      <bbk:Obs TIME_PERIOD="2004-02" OBS_VALUE="3.25" BBK_DIFF="-8.6" BBK_DIFF_Y="2.6"/>
      <bbk:Obs TIME_PERIOD="2004-01" OBS_VALUE="3.56" BBK_DIFF="-1.8" BBK_DIFF_Y="5.2"/>
      <bbk:Obs TIME_PERIOD="2003-12" OBS_VALUE="3.62" BBK_DIFF="-4.9" BBK_DIFF_Y="1.4"/>
      <bbk:Obs TIME_PERIOD="2003-11" OBS_VALUE="3.81" BBK_DIFF="2.8" BBK_DIFF_Y="-3.2"/>
      <bbk:Obs TIME_PERIOD="2003-10" OBS_VALUE="3.7" BBK_DIFF="13.1" BBK_DIFF_Y="-5.9"/>
      <bbk:Obs TIME_PERIOD="2003-09" OBS_VALUE="3.28" BBK_DIFF="-7.6" BBK_DIFF_Y="-13.7"/>
      <bbk:Obs TIME_PERIOD="2003-08" OBS_VALUE="3.55" BBK_DIFF="6.9" BBK_DIFF_Y="-14.0"/>
      <bbk:Obs TIME_PERIOD="2003-07" OBS_VALUE="3.32" BBK_DIFF="8.3" BBK_DIFF_Y="-24.2"/>
      <bbk:Obs TIME_PERIOD="2003-06" OBS_VALUE="3.06" BBK_DIFF="5.5" BBK_DIFF_Y="-33.4"/>
      <bbk:Obs TIME_PERIOD="2003-05" OBS_VALUE="2.9" BBK_DIFF="-14.3" BBK_DIFF_Y="-39.7"/>
      <bbk:Obs TIME_PERIOD="2003-04" OBS_VALUE="3.39" BBK_DIFF="1.6" BBK_DIFF_Y="-29.1"/>
      <bbk:Obs TIME_PERIOD="2003-03" OBS_VALUE="3.34" BBK_DIFF="5.3" BBK_DIFF_Y="-32.6"/>
      <bbk:Obs TIME_PERIOD="2003-02" OBS_VALUE="3.17" BBK_DIFF="-6.3" BBK_DIFF_Y="-31.0"/>
      <bbk:Obs TIME_PERIOD="2003-01" OBS_VALUE="3.38" BBK_DIFF="-5.3" BBK_DIFF_Y="-27.6"/>
      <bbk:Obs TIME_PERIOD="2002-12" OBS_VALUE="3.57" BBK_DIFF="-9.2" BBK_DIFF_Y="-20.9"/>
      <bbk:Obs TIME_PERIOD="2002-11" OBS_VALUE="3.93" BBK_DIFF="-0.2" BBK_DIFF_Y="-5.5"/>
      <bbk:Obs TIME_PERIOD="2002-10" OBS_VALUE="3.94" BBK_DIFF="3.7" BBK_DIFF_Y="1.5"/>
      <bbk:Obs TIME_PERIOD="2002-09" OBS_VALUE="3.8" BBK_DIFF="-7.9" BBK_DIFF_Y="-9.1"/>
      <bbk:Obs TIME_PERIOD="2002-08" OBS_VALUE="4.12" BBK_DIFF="-5.8" BBK_DIFF_Y="-4.8"/>
      <bbk:Obs TIME_PERIOD="2002-07" OBS_VALUE="4.38" BBK_DIFF="-4.9" BBK_DIFF_Y="-2.4"/>
      <bbk:Obs TIME_PERIOD="2002-06" OBS_VALUE="4.6" BBK_DIFF="-4.5" BBK_DIFF_Y="-0.8"/>
      <bbk:Obs TIME_PERIOD="2002-05" OBS_VALUE="4.82" BBK_DIFF="0.9" BBK_DIFF_Y="0.4"/>
      <bbk:Obs TIME_PERIOD="2002-04" OBS_VALUE="4.78" BBK_DIFF="-3.5" BBK_DIFF_Y="0.2"/>
      <bbk:Obs TIME_PERIOD="2002-03" OBS_VALUE="4.95" BBK_DIFF="7.8" BBK_DIFF_Y="12.2"/>
      <bbk:Obs TIME_PERIOD="2002-02" OBS_VALUE="4.59" BBK_DIFF="-1.6" BBK_DIFF_Y="1.8"/>
      <bbk:Obs TIME_PERIOD="2002-01" OBS_VALUE="4.67" BBK_DIFF="3.3" BBK_DIFF_Y="1.7"/>
      <bbk:Obs TIME_PERIOD="2001-12" OBS_VALUE="4.51" BBK_DIFF="8.5" BBK_DIFF_Y="-3.0"/>
      <bbk:Obs TIME_PERIOD="2001-11" OBS_VALUE="4.16" BBK_DIFF="7.3" BBK_DIFF_Y="-15.4"/>
      <bbk:Obs TIME_PERIOD="2001-10" OBS_VALUE="3.88" BBK_DIFF="-7.1" BBK_DIFF_Y="-24.9"/>
      <bbk:Obs TIME_PERIOD="2001-09" OBS_VALUE="4.18" BBK_DIFF="-3.5" BBK_DIFF_Y="-19.5"/>
      <bbk:Obs TIME_PERIOD="2001-08" OBS_VALUE="4.33" BBK_DIFF="-3.4" BBK_DIFF_Y="-18.9"/>
      <bbk:Obs TIME_PERIOD="2001-07" OBS_VALUE="4.48" BBK_DIFF="-3.3" BBK_DIFF_Y="-14.2"/>
      <bbk:Obs TIME_PERIOD="2001-06" OBS_VALUE="4.64" BBK_DIFF="-3.4" BBK_DIFF_Y="-9.5"/>
      <bbk:Obs TIME_PERIOD="2001-05" OBS_VALUE="4.8" BBK_DIFF="0.7" BBK_DIFF_Y="-7.6"/>
      <bbk:Obs TIME_PERIOD="2001-04" OBS_VALUE="4.77" BBK_DIFF="8.1" BBK_DIFF_Y="-7.1"/>
      <bbk:Obs TIME_PERIOD="2001-03" OBS_VALUE="4.41" BBK_DIFF="-2.2" BBK_DIFF_Y="-11.8"/>
      <bbk:Obs TIME_PERIOD="2001-02" OBS_VALUE="4.51" BBK_DIFF="-1.7" BBK_DIFF_Y="-13.5"/>
      <bbk:Obs TIME_PERIOD="2001-01" OBS_VALUE="4.59" BBK_DIFF="-1.5" BBK_DIFF_Y="-13.2"/>
      <bbk:Obs TIME_PERIOD="2000-12" OBS_VALUE="4.66" BBK_DIFF="-5.3" BBK_DIFF_Y="-6.6"/>
      <bbk:Obs TIME_PERIOD="2000-11" OBS_VALUE="4.92" BBK_DIFF="-4.8" BBK_DIFF_Y="1.1"/>
      <bbk:Obs TIME_PERIOD="2000-10" OBS_VALUE="5.17" BBK_DIFF="-0.4" BBK_DIFF_Y="6.2"/>
      <bbk:Obs TIME_PERIOD="2000-09" OBS_VALUE="5.19" BBK_DIFF="-2.9" BBK_DIFF_Y="10.8"/>
      <bbk:Obs TIME_PERIOD="2000-08" OBS_VALUE="5.34" BBK_DIFF="2.2" BBK_DIFF_Y="19.5"/>
      <bbk:Obs TIME_PERIOD="2000-07" OBS_VALUE="5.22" BBK_DIFF="2.0" BBK_DIFF_Y="21.4"/>
      <bbk:Obs TIME_PERIOD="2000-06" OBS_VALUE="5.12" BBK_DIFF="-1.4" BBK_DIFF_Y="26.7"/>
      <bbk:Obs TIME_PERIOD="2000-05" OBS_VALUE="5.2" BBK_DIFF="1.3" BBK_DIFF_Y="49.5"/>
      <bbk:Obs TIME_PERIOD="2000-04" OBS_VALUE="5.13" BBK_DIFF="2.5" BBK_DIFF_Y="57.5"/>
      <bbk:Obs TIME_PERIOD="2000-03" OBS_VALUE="5.0" BBK_DIFF="-4.1" BBK_DIFF_Y="43.8"/>
      <bbk:Obs TIME_PERIOD="2000-02" OBS_VALUE="5.21" BBK_DIFF="-1.4" BBK_DIFF_Y="45.0"/>
      <bbk:Obs TIME_PERIOD="2000-01" OBS_VALUE="5.29" BBK_DIFF="6.0" BBK_DIFF_Y="62.0"/>
      <bbk:Obs TIME_PERIOD="1999-12" OBS_VALUE="4.99" BBK_DIFF="2.5" BBK_DIFF_Y="42.7"/>
      <bbk:Obs TIME_PERIOD="1999-11" OBS_VALUE="4.86" BBK_DIFF="0.0" BBK_DIFF_Y="33.7"/>
      <bbk:Obs TIME_PERIOD="1999-10" OBS_VALUE="4.87" BBK_DIFF="3.9" BBK_DIFF_Y="29.2"/>
      <bbk:Obs TIME_PERIOD="1999-09" OBS_VALUE="4.68" BBK_DIFF="4.8" BBK_DIFF_Y="25.5"/>
      <bbk:Obs TIME_PERIOD="1999-08" OBS_VALUE="4.47" BBK_DIFF="3.8" BBK_DIFF_Y="14.4"/>
      <bbk:Obs TIME_PERIOD="1999-07" OBS_VALUE="4.3" BBK_DIFF="6.5" BBK_DIFF_Y="-2.7"/>
      <bbk:Obs TIME_PERIOD="1999-06" OBS_VALUE="4.04" BBK_DIFF="16.3" BBK_DIFF_Y="-9.6"/>
      <bbk:Obs TIME_PERIOD="1999-05" OBS_VALUE="3.48" BBK_DIFF="6.8" BBK_DIFF_Y="-24.4"/>
      <bbk:Obs TIME_PERIOD="1999-04" OBS_VALUE="3.26" BBK_DIFF="-6.4" BBK_DIFF_Y="-32.1"/>
      <bbk:Obs TIME_PERIOD="1999-03" OBS_VALUE="3.48" BBK_DIFF="-3.3" BBK_DIFF_Y="-24.7"/>
      <bbk:Obs TIME_PERIOD="1999-02" OBS_VALUE="3.6" BBK_DIFF="10.2" BBK_DIFF_Y="-20.6"/>
      <bbk:Obs TIME_PERIOD="1999-01" OBS_VALUE="3.26" BBK_DIFF="-6.7" BBK_DIFF_Y="-29.1"/>
      <bbk:Obs TIME_PERIOD="1998-12" OBS_VALUE="3.5" BBK_DIFF="-4.0" BBK_DIFF_Y="-28.5"/>
      <bbk:Obs TIME_PERIOD="1998-11" OBS_VALUE="3.64" BBK_DIFF="-3.4" BBK_DIFF_Y="-28.5"/>
      <bbk:Obs TIME_PERIOD="1998-10" OBS_VALUE="3.77" BBK_DIFF="0.9" BBK_DIFF_Y="-26.9"/>
      <bbk:Obs TIME_PERIOD="1998-09" OBS_VALUE="3.73" BBK_DIFF="-4.5" BBK_DIFF_Y="-24.8"/>
      <bbk:Obs TIME_PERIOD="1998-08" OBS_VALUE="3.91" BBK_DIFF="-11.7" BBK_DIFF_Y="-21.9"/>
      <bbk:Obs TIME_PERIOD="1998-07" OBS_VALUE="4.42" BBK_DIFF="-1.1" BBK_DIFF_Y="-7.4"/>
      <bbk:Obs TIME_PERIOD="1998-06" OBS_VALUE="4.47" BBK_DIFF="-2.7" BBK_DIFF_Y="-5.9"/>
      <bbk:Obs TIME_PERIOD="1998-05" OBS_VALUE="4.6" BBK_DIFF="-4.2" BBK_DIFF_Y="-8.4"/>
      <bbk:Obs TIME_PERIOD="1998-04" OBS_VALUE="4.8" BBK_DIFF="3.9" BBK_DIFF_Y="-2.3"/>
      <bbk:Obs TIME_PERIOD="1998-03" OBS_VALUE="4.62" BBK_DIFF="1.9" BBK_DIFF_Y="-7.8"/>
      <bbk:Obs TIME_PERIOD="1998-02" OBS_VALUE="4.53" BBK_DIFF="-1.5" BBK_DIFF_Y="-2.7"/>
      <bbk:Obs TIME_PERIOD="1998-01" OBS_VALUE="4.6" BBK_DIFF="-5.9" BBK_DIFF_Y="-4.2"/>
      <bbk:Obs TIME_PERIOD="1997-12" OBS_VALUE="4.89" BBK_DIFF="-3.9" BBK_DIFF_Y="-0.8"/>
      <bbk:Obs TIME_PERIOD="1997-11" OBS_VALUE="5.09" BBK_DIFF="-1.3" BBK_DIFF_Y="4.3"/>
      <bbk:Obs TIME_PERIOD="1997-10" OBS_VALUE="5.15" BBK_DIFF="3.9" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1997-09" OBS_VALUE="4.96" BBK_DIFF="-0.8" BBK_DIFF_Y="-5.4"/>
      <bbk:Obs TIME_PERIOD="1997-08" OBS_VALUE="5.0" BBK_DIFF="4.7" BBK_DIFF_Y="-8.9"/>
      <bbk:Obs TIME_PERIOD="1997-07" OBS_VALUE="4.78" BBK_DIFF="0.5" BBK_DIFF_Y="-14.8"/>
      <bbk:Obs TIME_PERIOD="1997-06" OBS_VALUE="4.75" BBK_DIFF="-5.2" BBK_DIFF_Y="-17.8"/>
      <bbk:Obs TIME_PERIOD="1997-05" OBS_VALUE="5.01" BBK_DIFF="2.2" BBK_DIFF_Y="-9.1"/>
      <bbk:Obs TIME_PERIOD="1997-04" OBS_VALUE="4.91" BBK_DIFF="-2.0" BBK_DIFF_Y="-9.4"/>
      <bbk:Obs TIME_PERIOD="1997-03" OBS_VALUE="5.01" BBK_DIFF="7.6" BBK_DIFF_Y="-10.5"/>
      <bbk:Obs TIME_PERIOD="1997-02" OBS_VALUE="4.66" BBK_DIFF="-3.0" BBK_DIFF_Y="-16.4"/>
      <bbk:Obs TIME_PERIOD="1997-01" OBS_VALUE="4.8" BBK_DIFF="-2.6" BBK_DIFF_Y="-4.9"/>
      <bbk:Obs TIME_PERIOD="1996-12" OBS_VALUE="4.93" BBK_DIFF="1.1" BBK_DIFF_Y="-5.0"/>
      <bbk:Obs TIME_PERIOD="1996-11" OBS_VALUE="4.88" BBK_DIFF="-5.6" BBK_DIFF_Y="-9.1"/>
      <bbk:Obs TIME_PERIOD="1996-10" OBS_VALUE="5.17" BBK_DIFF="-1.4" BBK_DIFF_Y="-9.8"/>
      <bbk:Obs TIME_PERIOD="1996-09" OBS_VALUE="5.24" BBK_DIFF="-4.5" BBK_DIFF_Y="-12.1"/>
      <bbk:Obs TIME_PERIOD="1996-08" OBS_VALUE="5.49" BBK_DIFF="-2.1" BBK_DIFF_Y="-9.9"/>
      <bbk:Obs TIME_PERIOD="1996-07" OBS_VALUE="5.61" BBK_DIFF="-3.0" BBK_DIFF_Y="-10.4"/>
      <bbk:Obs TIME_PERIOD="1996-06" OBS_VALUE="5.78" BBK_DIFF="4.9" BBK_DIFF_Y="-10.7"/>
      <bbk:Obs TIME_PERIOD="1996-05" OBS_VALUE="5.52" BBK_DIFF="1.8" BBK_DIFF_Y="-7.9"/>
      <bbk:Obs TIME_PERIOD="1996-04" OBS_VALUE="5.42" BBK_DIFF="-3.2" BBK_DIFF_Y="-16.4"/>
      <bbk:Obs TIME_PERIOD="1996-03" OBS_VALUE="5.6" BBK_DIFF="0.5" BBK_DIFF_Y="-15.8"/>
      <bbk:Obs TIME_PERIOD="1996-02" OBS_VALUE="5.57" BBK_DIFF="10.4" BBK_DIFF_Y="-21.3"/>
      <bbk:Obs TIME_PERIOD="1996-01" OBS_VALUE="5.05" BBK_DIFF="-2.7" BBK_DIFF_Y="-30.3"/>
      <bbk:Obs TIME_PERIOD="1995-12" OBS_VALUE="5.19" BBK_DIFF="-3.3" BBK_DIFF_Y="-30.6"/>
      <bbk:Obs TIME_PERIOD="1995-11" OBS_VALUE="5.37" BBK_DIFF="-6.4" BBK_DIFF_Y="-25.2"/>
      <bbk:Obs TIME_PERIOD="1995-10" OBS_VALUE="5.73" BBK_DIFF="-3.9" BBK_DIFF_Y="-21.3"/>
      <bbk:Obs TIME_PERIOD="1995-09" OBS_VALUE="5.97" BBK_DIFF="-2.1" BBK_DIFF_Y="-18.0"/>
      <bbk:Obs TIME_PERIOD="1995-08" OBS_VALUE="6.09" BBK_DIFF="-2.7" BBK_DIFF_Y="-12.1"/>
      <bbk:Obs TIME_PERIOD="1995-07" OBS_VALUE="6.26" BBK_DIFF="-3.3" BBK_DIFF_Y="-5.3"/>
      <bbk:Obs TIME_PERIOD="1995-06" OBS_VALUE="6.48" BBK_DIFF="8.1" BBK_DIFF_Y="-3.0"/>
      <bbk:Obs TIME_PERIOD="1995-05" OBS_VALUE="5.99" BBK_DIFF="-7.6" BBK_DIFF_Y="-8.2"/>
      <bbk:Obs TIME_PERIOD="1995-04" OBS_VALUE="6.49" BBK_DIFF="-2.5" BBK_DIFF_Y="3.1"/>
      <bbk:Obs TIME_PERIOD="1995-03" OBS_VALUE="6.65" BBK_DIFF="-6.0" BBK_DIFF_Y="11.1"/>
      <bbk:Obs TIME_PERIOD="1995-02" OBS_VALUE="7.08" BBK_DIFF="-2.3" BBK_DIFF_Y="20.9"/>
      <bbk:Obs TIME_PERIOD="1995-01" OBS_VALUE="7.24" BBK_DIFF="-3.1" BBK_DIFF_Y="37.9"/>
      <bbk:Obs TIME_PERIOD="1994-12" OBS_VALUE="7.48" BBK_DIFF="4.1" BBK_DIFF_Y="45.0"/>
      <bbk:Obs TIME_PERIOD="1994-11" OBS_VALUE="7.18" BBK_DIFF="-1.4" BBK_DIFF_Y="34.3"/>
      <bbk:Obs TIME_PERIOD="1994-10" OBS_VALUE="7.28" BBK_DIFF="0.1" BBK_DIFF_Y="33.2"/>
      <bbk:Obs TIME_PERIOD="1994-09" OBS_VALUE="7.28" BBK_DIFF="4.9" BBK_DIFF_Y="26.2"/>
      <bbk:Obs TIME_PERIOD="1994-08" OBS_VALUE="6.94" BBK_DIFF="4.9" BBK_DIFF_Y="17.8"/>
      <bbk:Obs TIME_PERIOD="1994-07" OBS_VALUE="6.61" BBK_DIFF="-0.9" BBK_DIFF_Y="7.2"/>
      <bbk:Obs TIME_PERIOD="1994-06" OBS_VALUE="6.67" BBK_DIFF="2.3" BBK_DIFF_Y="5.4"/>
      <bbk:Obs TIME_PERIOD="1994-05" OBS_VALUE="6.53" BBK_DIFF="3.7" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1994-04" OBS_VALUE="6.29" BBK_DIFF="5.1" BBK_DIFF_Y="-2.4"/>
      <bbk:Obs TIME_PERIOD="1994-03" OBS_VALUE="5.99" BBK_DIFF="2.3" BBK_DIFF_Y="-5.2"/>
      <bbk:Obs TIME_PERIOD="1994-02" OBS_VALUE="5.86" BBK_DIFF="11.5" BBK_DIFF_Y="-7.4"/>
      <bbk:Obs TIME_PERIOD="1994-01" OBS_VALUE="5.25" BBK_DIFF="1.8" BBK_DIFF_Y="-23.2"/>
      <bbk:Obs TIME_PERIOD="1993-12" OBS_VALUE="5.16" BBK_DIFF="-3.6" BBK_DIFF_Y="-25.9"/>
      <bbk:Obs TIME_PERIOD="1993-11" OBS_VALUE="5.35" BBK_DIFF="-2.2" BBK_DIFF_Y="-25.8"/>
      <bbk:Obs TIME_PERIOD="1993-10" OBS_VALUE="5.47" BBK_DIFF="-5.2" BBK_DIFF_Y="-24.7"/>
      <bbk:Obs TIME_PERIOD="1993-09" OBS_VALUE="5.77" BBK_DIFF="-2.1" BBK_DIFF_Y="-25.8"/>
      <bbk:Obs TIME_PERIOD="1993-08" OBS_VALUE="5.89" BBK_DIFF="-4.5" BBK_DIFF_Y="-29.2"/>
      <bbk:Obs TIME_PERIOD="1993-07" OBS_VALUE="6.17" BBK_DIFF="-2.6" BBK_DIFF_Y="-27.2"/>
      <bbk:Obs TIME_PERIOD="1993-06" OBS_VALUE="6.33" BBK_DIFF="-2.6" BBK_DIFF_Y="-24.0"/>
      <bbk:Obs TIME_PERIOD="1993-05" OBS_VALUE="6.5" BBK_DIFF="0.9" BBK_DIFF_Y="-20.8"/>
      <bbk:Obs TIME_PERIOD="1993-04" OBS_VALUE="6.45" BBK_DIFF="2.0" BBK_DIFF_Y="-22.2"/>
      <bbk:Obs TIME_PERIOD="1993-03" OBS_VALUE="6.32" BBK_DIFF="0.0" BBK_DIFF_Y="-23.7"/>
      <bbk:Obs TIME_PERIOD="1993-02" OBS_VALUE="6.32" BBK_DIFF="-7.5" BBK_DIFF_Y="-21.5"/>
      <bbk:Obs TIME_PERIOD="1993-01" OBS_VALUE="6.84" BBK_DIFF="-1.8" BBK_DIFF_Y="-15.4"/>
      <bbk:Obs TIME_PERIOD="1992-12" OBS_VALUE="6.96" BBK_DIFF="-3.5" BBK_DIFF_Y="-17.7"/>
      <bbk:Obs TIME_PERIOD="1992-11" OBS_VALUE="7.21" BBK_DIFF="-0.8" BBK_DIFF_Y="-17.0"/>
      <bbk:Obs TIME_PERIOD="1992-10" OBS_VALUE="7.26" BBK_DIFF="-6.6" BBK_DIFF_Y="-16.8"/>
      <bbk:Obs TIME_PERIOD="1992-09" OBS_VALUE="7.77" BBK_DIFF="-6.6" BBK_DIFF_Y="-11.1"/>
      <bbk:Obs TIME_PERIOD="1992-08" OBS_VALUE="8.32" BBK_DIFF="-1.8" BBK_DIFF_Y="-4.8"/>
      <bbk:Obs TIME_PERIOD="1992-07" OBS_VALUE="8.47" BBK_DIFF="1.6" BBK_DIFF_Y="-5.6"/>
      <bbk:Obs TIME_PERIOD="1992-06" OBS_VALUE="8.34" BBK_DIFF="1.5" BBK_DIFF_Y="-4.5"/>
      <bbk:Obs TIME_PERIOD="1992-05" OBS_VALUE="8.22" BBK_DIFF="-0.9" BBK_DIFF_Y="-3.0"/>
      <bbk:Obs TIME_PERIOD="1992-04" OBS_VALUE="8.29" BBK_DIFF="0.1" BBK_DIFF_Y="-4.0"/>
      <bbk:Obs TIME_PERIOD="1992-03" OBS_VALUE="8.28" BBK_DIFF="2.9" BBK_DIFF_Y="-4.9"/>
      <bbk:Obs TIME_PERIOD="1992-02" OBS_VALUE="8.05" BBK_DIFF="-0.4" BBK_DIFF_Y="-6.1"/>
      <bbk:Obs TIME_PERIOD="1992-01" OBS_VALUE="8.08" BBK_DIFF="-4.5" BBK_DIFF_Y="-10.0"/>
      <bbk:Obs TIME_PERIOD="1991-12" OBS_VALUE="8.46" BBK_DIFF="-2.6" BBK_DIFF_Y="-6.8"/>
      <bbk:Obs TIME_PERIOD="1991-11" OBS_VALUE="8.68" BBK_DIFF="-0.5" BBK_DIFF_Y="-4.3"/>
      <bbk:Obs TIME_PERIOD="1991-10" OBS_VALUE="8.73" BBK_DIFF="-0.2" BBK_DIFF_Y="-4.0"/>
      <bbk:Obs TIME_PERIOD="1991-09" OBS_VALUE="8.75" BBK_DIFF="0.0" BBK_DIFF_Y="-5.3"/>
      <bbk:Obs TIME_PERIOD="1991-08" OBS_VALUE="8.75" BBK_DIFF="-2.5" BBK_DIFF_Y="-3.7"/>
      <bbk:Obs TIME_PERIOD="1991-07" OBS_VALUE="8.97" BBK_DIFF="2.8" BBK_DIFF_Y="3.7"/>
      <bbk:Obs TIME_PERIOD="1991-06" OBS_VALUE="8.73" BBK_DIFF="3.0" BBK_DIFF_Y="-1.9"/>
      <bbk:Obs TIME_PERIOD="1991-05" OBS_VALUE="8.47" BBK_DIFF="-1.9" BBK_DIFF_Y="-5.8"/>
      <bbk:Obs TIME_PERIOD="1991-04" OBS_VALUE="8.63" BBK_DIFF="-0.9" BBK_DIFF_Y="-4.7"/>
      <bbk:Obs TIME_PERIOD="1991-03" OBS_VALUE="8.71" BBK_DIFF="1.6" BBK_DIFF_Y="-0.9"/>
      <bbk:Obs TIME_PERIOD="1991-02" OBS_VALUE="8.57" BBK_DIFF="-4.5" BBK_DIFF_Y="-4.3"/>
      <bbk:Obs TIME_PERIOD="1991-01" OBS_VALUE="8.98" BBK_DIFF="-1.0" BBK_DIFF_Y="10.5"/>
      <bbk:Obs TIME_PERIOD="1990-12" OBS_VALUE="9.07" BBK_DIFF="0.0" BBK_DIFF_Y="18.5"/>
      <bbk:Obs TIME_PERIOD="1990-11" OBS_VALUE="9.08" BBK_DIFF="-0.1" BBK_DIFF_Y="17.2"/>
      <bbk:Obs TIME_PERIOD="1990-10" OBS_VALUE="9.09" BBK_DIFF="-1.6" BBK_DIFF_Y="23.0"/>
      <bbk:Obs TIME_PERIOD="1990-09" OBS_VALUE="9.24" BBK_DIFF="1.7" BBK_DIFF_Y="27.9"/>
      <bbk:Obs TIME_PERIOD="1990-08" OBS_VALUE="9.08" BBK_DIFF="5.0" BBK_DIFF_Y="30.5"/>
      <bbk:Obs TIME_PERIOD="1990-07" OBS_VALUE="8.65" BBK_DIFF="-2.8" BBK_DIFF_Y="29.0"/>
      <bbk:Obs TIME_PERIOD="1990-06" OBS_VALUE="8.9" BBK_DIFF="-1.1" BBK_DIFF_Y="29.0"/>
      <bbk:Obs TIME_PERIOD="1990-05" OBS_VALUE="9.0" BBK_DIFF="-0.7" BBK_DIFF_Y="26.7"/>
      <bbk:Obs TIME_PERIOD="1990-04" OBS_VALUE="9.06" BBK_DIFF="3.1" BBK_DIFF_Y="31.6"/>
      <bbk:Obs TIME_PERIOD="1990-03" OBS_VALUE="8.79" BBK_DIFF="-1.9" BBK_DIFF_Y="26.8"/>
      <bbk:Obs TIME_PERIOD="1990-02" OBS_VALUE="8.96" BBK_DIFF="10.3" BBK_DIFF_Y="27.2"/>
      <bbk:Obs TIME_PERIOD="1990-01" OBS_VALUE="8.13" BBK_DIFF="6.1" BBK_DIFF_Y="22.7"/>
      <bbk:Obs TIME_PERIOD="1989-12" OBS_VALUE="7.66" BBK_DIFF="-1.0" BBK_DIFF_Y="23.4"/>
      <bbk:Obs TIME_PERIOD="1989-11" OBS_VALUE="7.74" BBK_DIFF="4.7" BBK_DIFF_Y="28.8"/>
      <bbk:Obs TIME_PERIOD="1989-10" OBS_VALUE="7.39" BBK_DIFF="2.3" BBK_DIFF_Y="27.9"/>
      <bbk:Obs TIME_PERIOD="1989-09" OBS_VALUE="7.22" BBK_DIFF="3.8" BBK_DIFF_Y="18.5"/>
      <bbk:Obs TIME_PERIOD="1989-08" OBS_VALUE="6.96" BBK_DIFF="3.8" BBK_DIFF_Y="9.2"/>
      <bbk:Obs TIME_PERIOD="1989-07" OBS_VALUE="6.7" BBK_DIFF="-2.8" BBK_DIFF_Y="5.9"/>
      <bbk:Obs TIME_PERIOD="1989-06" OBS_VALUE="6.9" BBK_DIFF="-2.9" BBK_DIFF_Y="15.2"/>
      <bbk:Obs TIME_PERIOD="1989-05" OBS_VALUE="7.1" BBK_DIFF="3.1" BBK_DIFF_Y="21.6"/>
      <bbk:Obs TIME_PERIOD="1989-04" OBS_VALUE="6.89" BBK_DIFF="-0.7" BBK_DIFF_Y="20.7"/>
      <bbk:Obs TIME_PERIOD="1989-03" OBS_VALUE="6.93" BBK_DIFF="-1.6" BBK_DIFF_Y="27.5"/>
      <bbk:Obs TIME_PERIOD="1989-02" OBS_VALUE="7.04" BBK_DIFF="6.3" BBK_DIFF_Y="30.7"/>
      <bbk:Obs TIME_PERIOD="1989-01" OBS_VALUE="6.62" BBK_DIFF="6.7" BBK_DIFF_Y="18.9"/>
      <bbk:Obs TIME_PERIOD="1988-12" OBS_VALUE="6.21" BBK_DIFF="3.3" BBK_DIFF_Y="9.8"/>
      <bbk:Obs TIME_PERIOD="1988-11" OBS_VALUE="6.01" BBK_DIFF="4.0" BBK_DIFF_Y="7.0"/>
      <bbk:Obs TIME_PERIOD="1988-10" OBS_VALUE="5.78" BBK_DIFF="-5.2" BBK_DIFF_Y="-3.6"/>
      <bbk:Obs TIME_PERIOD="1988-09" OBS_VALUE="6.1" BBK_DIFF="-4.3" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1988-08" OBS_VALUE="6.37" BBK_DIFF="0.6" BBK_DIFF_Y="9.0"/>
      <bbk:Obs TIME_PERIOD="1988-07" OBS_VALUE="6.33" BBK_DIFF="5.7" BBK_DIFF_Y="11.8"/>
      <bbk:Obs TIME_PERIOD="1988-06" OBS_VALUE="5.99" BBK_DIFF="2.5" BBK_DIFF_Y="9.4"/>
      <bbk:Obs TIME_PERIOD="1988-05" OBS_VALUE="5.84" BBK_DIFF="2.4" BBK_DIFF_Y="14.1"/>
      <bbk:Obs TIME_PERIOD="1988-04" OBS_VALUE="5.71" BBK_DIFF="4.9" BBK_DIFF_Y="9.2"/>
      <bbk:Obs TIME_PERIOD="1988-03" OBS_VALUE="5.44" BBK_DIFF="0.9" BBK_DIFF_Y="2.0"/>
      <bbk:Obs TIME_PERIOD="1988-02" OBS_VALUE="5.39" BBK_DIFF="-3.2" BBK_DIFF_Y="-2.8"/>
      <bbk:Obs TIME_PERIOD="1988-01" OBS_VALUE="5.57" BBK_DIFF="-1.6" BBK_DIFF_Y="0.7"/>
      <bbk:Obs TIME_PERIOD="1987-12" OBS_VALUE="5.66" BBK_DIFF="0.7" BBK_DIFF_Y="-2.2"/>
      <bbk:Obs TIME_PERIOD="1987-11" OBS_VALUE="5.62" BBK_DIFF="-6.2" BBK_DIFF_Y="-3.2"/>
      <bbk:Obs TIME_PERIOD="1987-10" OBS_VALUE="5.99" BBK_DIFF="-2.0" BBK_DIFF_Y="0.7"/>
      <bbk:Obs TIME_PERIOD="1987-09" OBS_VALUE="6.12" BBK_DIFF="4.7" BBK_DIFF_Y="6.6"/>
      <bbk:Obs TIME_PERIOD="1987-08" OBS_VALUE="5.85" BBK_DIFF="3.2" BBK_DIFF_Y="6.6"/>
      <bbk:Obs TIME_PERIOD="1987-07" OBS_VALUE="5.66" BBK_DIFF="3.4" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1987-06" OBS_VALUE="5.48" BBK_DIFF="7.0" BBK_DIFF_Y="-5.7"/>
      <bbk:Obs TIME_PERIOD="1987-05" OBS_VALUE="5.12" BBK_DIFF="-2.0" BBK_DIFF_Y="-12.8"/>
      <bbk:Obs TIME_PERIOD="1987-04" OBS_VALUE="5.23" BBK_DIFF="-2.0" BBK_DIFF_Y="-3.7"/>
      <bbk:Obs TIME_PERIOD="1987-03" OBS_VALUE="5.33" BBK_DIFF="-3.8" BBK_DIFF_Y="-5.3"/>
      <bbk:Obs TIME_PERIOD="1987-02" OBS_VALUE="5.54" BBK_DIFF="0.2" BBK_DIFF_Y="-5.8"/>
      <bbk:Obs TIME_PERIOD="1987-01" OBS_VALUE="5.53" BBK_DIFF="-4.4" BBK_DIFF_Y="-11.0"/>
      <bbk:Obs TIME_PERIOD="1986-12" OBS_VALUE="5.79" BBK_DIFF="-0.3" BBK_DIFF_Y="-7.8"/>
      <bbk:Obs TIME_PERIOD="1986-11" OBS_VALUE="5.8" BBK_DIFF="-2.5" BBK_DIFF_Y="-10.0"/>
      <bbk:Obs TIME_PERIOD="1986-10" OBS_VALUE="5.95" BBK_DIFF="3.7" BBK_DIFF_Y="-10.1"/>
      <bbk:Obs TIME_PERIOD="1986-09" OBS_VALUE="5.74" BBK_DIFF="4.7" BBK_DIFF_Y="-6.8"/>
      <bbk:Obs TIME_PERIOD="1986-08" OBS_VALUE="5.48" BBK_DIFF="-3.2" BBK_DIFF_Y="-11.6"/>
      <bbk:Obs TIME_PERIOD="1986-07" OBS_VALUE="5.67" BBK_DIFF="-2.4" BBK_DIFF_Y="-12.6"/>
      <bbk:Obs TIME_PERIOD="1986-06" OBS_VALUE="5.81" BBK_DIFF="-1.1" BBK_DIFF_Y="-14.4"/>
      <bbk:Obs TIME_PERIOD="1986-05" OBS_VALUE="5.87" BBK_DIFF="8.2" BBK_DIFF_Y="-15.7"/>
      <bbk:Obs TIME_PERIOD="1986-04" OBS_VALUE="5.43" BBK_DIFF="-3.6" BBK_DIFF_Y="-24.0"/>
      <bbk:Obs TIME_PERIOD="1986-03" OBS_VALUE="5.63" BBK_DIFF="-4.4" BBK_DIFF_Y="-23.5"/>
      <bbk:Obs TIME_PERIOD="1986-02" OBS_VALUE="5.88" BBK_DIFF="-5.4" BBK_DIFF_Y="-21.4"/>
      <bbk:Obs TIME_PERIOD="1986-01" OBS_VALUE="6.22" BBK_DIFF="-0.9" BBK_DIFF_Y="-12.6"/>
      <bbk:Obs TIME_PERIOD="1985-12" OBS_VALUE="6.27" BBK_DIFF="-2.7" BBK_DIFF_Y="-9.1"/>
      <bbk:Obs TIME_PERIOD="1985-11" OBS_VALUE="6.45" BBK_DIFF="-2.7" BBK_DIFF_Y="-7.1"/>
      <bbk:Obs TIME_PERIOD="1985-10" OBS_VALUE="6.62" BBK_DIFF="7.5" BBK_DIFF_Y="-7.9"/>
      <bbk:Obs TIME_PERIOD="1985-09" OBS_VALUE="6.16" BBK_DIFF="-0.7" BBK_DIFF_Y="-17.9"/>
      <bbk:Obs TIME_PERIOD="1985-08" OBS_VALUE="6.2" BBK_DIFF="-4.3" BBK_DIFF_Y="-19.1"/>
      <bbk:Obs TIME_PERIOD="1985-07" OBS_VALUE="6.48" BBK_DIFF="-4.4" BBK_DIFF_Y="-19.2"/>
      <bbk:Obs TIME_PERIOD="1985-06" OBS_VALUE="6.78" BBK_DIFF="-2.6" BBK_DIFF_Y="-15.1"/>
      <bbk:Obs TIME_PERIOD="1985-05" OBS_VALUE="6.96" BBK_DIFF="-2.4" BBK_DIFF_Y="-13.7"/>
      <bbk:Obs TIME_PERIOD="1985-04" OBS_VALUE="7.14" BBK_DIFF="-3.0" BBK_DIFF_Y="-9.5"/>
      <bbk:Obs TIME_PERIOD="1985-03" OBS_VALUE="7.36" BBK_DIFF="-1.7" BBK_DIFF_Y="-6.2"/>
      <bbk:Obs TIME_PERIOD="1985-02" OBS_VALUE="7.49" BBK_DIFF="5.2" BBK_DIFF_Y="-4.5"/>
      <bbk:Obs TIME_PERIOD="1985-01" OBS_VALUE="7.11" BBK_DIFF="3.1" BBK_DIFF_Y="-12.7"/>
      <bbk:Obs TIME_PERIOD="1984-12" OBS_VALUE="6.9" BBK_DIFF="-0.5" BBK_DIFF_Y="-15.3"/>
      <bbk:Obs TIME_PERIOD="1984-11" OBS_VALUE="6.94" BBK_DIFF="-3.6" BBK_DIFF_Y="-14.8"/>
      <bbk:Obs TIME_PERIOD="1984-10" OBS_VALUE="7.19" BBK_DIFF="-4.1" BBK_DIFF_Y="-9.9"/>
      <bbk:Obs TIME_PERIOD="1984-09" OBS_VALUE="7.5" BBK_DIFF="-2.1" BBK_DIFF_Y="-9.0"/>
      <bbk:Obs TIME_PERIOD="1984-08" OBS_VALUE="7.66" BBK_DIFF="-4.5" BBK_DIFF_Y="-8.6"/>
      <bbk:Obs TIME_PERIOD="1984-07" OBS_VALUE="8.03" BBK_DIFF="0.5" BBK_DIFF_Y="-1.9"/>
      <bbk:Obs TIME_PERIOD="1984-06" OBS_VALUE="7.99" BBK_DIFF="-1.0" BBK_DIFF_Y="-0.5"/>
      <bbk:Obs TIME_PERIOD="1984-05" OBS_VALUE="8.07" BBK_DIFF="2.3" BBK_DIFF_Y="1.3"/>
      <bbk:Obs TIME_PERIOD="1984-04" OBS_VALUE="7.89" BBK_DIFF="0.6" BBK_DIFF_Y="5.5"/>
      <bbk:Obs TIME_PERIOD="1984-03" OBS_VALUE="7.84" BBK_DIFF="0.1" BBK_DIFF_Y="6.9"/>
      <bbk:Obs TIME_PERIOD="1984-02" OBS_VALUE="7.84" BBK_DIFF="-3.8" BBK_DIFF_Y="4.1"/>
      <bbk:Obs TIME_PERIOD="1984-01" OBS_VALUE="8.15" BBK_DIFF="0.0" BBK_DIFF_Y="6.2"/>
      <bbk:Obs TIME_PERIOD="1983-12" OBS_VALUE="8.14" BBK_DIFF="0.1" BBK_DIFF_Y="4.9"/>
      <bbk:Obs TIME_PERIOD="1983-11" OBS_VALUE="8.14" BBK_DIFF="1.9" BBK_DIFF_Y="0.1"/>
      <bbk:Obs TIME_PERIOD="1983-10" OBS_VALUE="7.99" BBK_DIFF="-3.1" BBK_DIFF_Y="-1.6"/>
      <bbk:Obs TIME_PERIOD="1983-09" OBS_VALUE="8.24" BBK_DIFF="-1.7" BBK_DIFF_Y="-3.4"/>
      <bbk:Obs TIME_PERIOD="1983-08" OBS_VALUE="8.38" BBK_DIFF="2.4" BBK_DIFF_Y="-4.8"/>
      <bbk:Obs TIME_PERIOD="1983-07" OBS_VALUE="8.18" BBK_DIFF="1.9" BBK_DIFF_Y="-11.5"/>
      <bbk:Obs TIME_PERIOD="1983-06" OBS_VALUE="8.03" BBK_DIFF="0.7" BBK_DIFF_Y="-14.6"/>
      <bbk:Obs TIME_PERIOD="1983-05" OBS_VALUE="7.97" BBK_DIFF="6.6" BBK_DIFF_Y="-9.6"/>
      <bbk:Obs TIME_PERIOD="1983-04" OBS_VALUE="7.47" BBK_DIFF="1.9" BBK_DIFF_Y="-14.7"/>
      <bbk:Obs TIME_PERIOD="1983-03" OBS_VALUE="7.34" BBK_DIFF="-2.6" BBK_DIFF_Y="-21.0"/>
      <bbk:Obs TIME_PERIOD="1983-02" OBS_VALUE="7.53" BBK_DIFF="-1.9" BBK_DIFF_Y="-22.6"/>
      <bbk:Obs TIME_PERIOD="1983-01" OBS_VALUE="7.67" BBK_DIFF="-1.1" BBK_DIFF_Y="-21.7"/>
      <bbk:Obs TIME_PERIOD="1982-12" OBS_VALUE="7.76" BBK_DIFF="-4.5" BBK_DIFF_Y="-20.7"/>
      <bbk:Obs TIME_PERIOD="1982-11" OBS_VALUE="8.13" BBK_DIFF="0.2" BBK_DIFF_Y="-16.1"/>
      <bbk:Obs TIME_PERIOD="1982-10" OBS_VALUE="8.11" BBK_DIFF="-4.9" BBK_DIFF_Y="-22.0"/>
      <bbk:Obs TIME_PERIOD="1982-09" OBS_VALUE="8.53" BBK_DIFF="-3.1" BBK_DIFF_Y="-21.7"/>
      <bbk:Obs TIME_PERIOD="1982-08" OBS_VALUE="8.8" BBK_DIFF="-4.8" BBK_DIFF_Y="-23.4"/>
      <bbk:Obs TIME_PERIOD="1982-07" OBS_VALUE="9.24" BBK_DIFF="-1.7" BBK_DIFF_Y="-17.6"/>
      <bbk:Obs TIME_PERIOD="1982-06" OBS_VALUE="9.4" BBK_DIFF="6.6" BBK_DIFF_Y="-13.1"/>
      <bbk:Obs TIME_PERIOD="1982-05" OBS_VALUE="8.82" BBK_DIFF="0.7" BBK_DIFF_Y="-22.0"/>
      <bbk:Obs TIME_PERIOD="1982-04" OBS_VALUE="8.76" BBK_DIFF="-5.7" BBK_DIFF_Y="-16.1"/>
      <bbk:Obs TIME_PERIOD="1982-03" OBS_VALUE="9.29" BBK_DIFF="-4.6" BBK_DIFF_Y="-8.4"/>
      <bbk:Obs TIME_PERIOD="1982-02" OBS_VALUE="9.73" BBK_DIFF="-0.7" BBK_DIFF_Y="-7.5"/>
      <bbk:Obs TIME_PERIOD="1982-01" OBS_VALUE="9.8" BBK_DIFF="0.1" BBK_DIFF_Y="5.7"/>
      <bbk:Obs TIME_PERIOD="1981-12" OBS_VALUE="9.79" BBK_DIFF="1.1" BBK_DIFF_Y="8.9"/>
      <bbk:Obs TIME_PERIOD="1981-11" OBS_VALUE="9.69" BBK_DIFF="-6.8" BBK_DIFF_Y="11.6"/>
      <bbk:Obs TIME_PERIOD="1981-10" OBS_VALUE="10.4" BBK_DIFF="-4.6" BBK_DIFF_Y="20.9"/>
      <bbk:Obs TIME_PERIOD="1981-09" OBS_VALUE="10.89" BBK_DIFF="-5.2" BBK_DIFF_Y="31.4"/>
      <bbk:Obs TIME_PERIOD="1981-08" OBS_VALUE="11.49" BBK_DIFF="2.4" BBK_DIFF_Y="44.3"/>
      <bbk:Obs TIME_PERIOD="1981-07" OBS_VALUE="11.22" BBK_DIFF="3.7" BBK_DIFF_Y="45.3"/>
      <bbk:Obs TIME_PERIOD="1981-06" OBS_VALUE="10.82" BBK_DIFF="-4.2" BBK_DIFF_Y="36.1"/>
      <bbk:Obs TIME_PERIOD="1981-05" OBS_VALUE="11.3" BBK_DIFF="8.2" BBK_DIFF_Y="35.8"/>
      <bbk:Obs TIME_PERIOD="1981-04" OBS_VALUE="10.44" BBK_DIFF="2.9" BBK_DIFF_Y="17.0"/>
      <bbk:Obs TIME_PERIOD="1981-03" OBS_VALUE="10.14" BBK_DIFF="-3.6" BBK_DIFF_Y="3.2"/>
      <bbk:Obs TIME_PERIOD="1981-02" OBS_VALUE="10.52" BBK_DIFF="13.5" BBK_DIFF_Y="17.7"/>
      <bbk:Obs TIME_PERIOD="1981-01" OBS_VALUE="9.27" BBK_DIFF="3.1" BBK_DIFF_Y="13.3"/>
      <bbk:Obs TIME_PERIOD="1980-12" OBS_VALUE="8.99" BBK_DIFF="3.6" BBK_DIFF_Y="14.3"/>
      <bbk:Obs TIME_PERIOD="1980-11" OBS_VALUE="8.68" BBK_DIFF="1.0" BBK_DIFF_Y="10.7"/>
      <bbk:Obs TIME_PERIOD="1980-10" OBS_VALUE="8.6" BBK_DIFF="3.6" BBK_DIFF_Y="6.8"/>
      <bbk:Obs TIME_PERIOD="1980-09" OBS_VALUE="8.29" BBK_DIFF="4.2" BBK_DIFF_Y="10.1"/>
      <bbk:Obs TIME_PERIOD="1980-08" OBS_VALUE="7.96" BBK_DIFF="3.1" BBK_DIFF_Y="6.6"/>
      <bbk:Obs TIME_PERIOD="1980-07" OBS_VALUE="7.72" BBK_DIFF="-2.9" BBK_DIFF_Y="1.9"/>
      <bbk:Obs TIME_PERIOD="1980-06" OBS_VALUE="7.95" BBK_DIFF="-4.4" BBK_DIFF_Y="1.7"/>
      <bbk:Obs TIME_PERIOD="1980-05" OBS_VALUE="8.32" BBK_DIFF="-6.7" BBK_DIFF_Y="7.5"/>
      <bbk:Obs TIME_PERIOD="1980-04" OBS_VALUE="8.92" BBK_DIFF="-9.2" BBK_DIFF_Y="23.6"/>
      <bbk:Obs TIME_PERIOD="1980-03" OBS_VALUE="9.83" BBK_DIFF="10.0" BBK_DIFF_Y="42.6"/>
      <bbk:Obs TIME_PERIOD="1980-02" OBS_VALUE="8.94" BBK_DIFF="9.3" BBK_DIFF_Y="31.8"/>
      <bbk:Obs TIME_PERIOD="1980-01" OBS_VALUE="8.18" BBK_DIFF="4.0" BBK_DIFF_Y="25.1"/>
      <bbk:Obs TIME_PERIOD="1979-12" OBS_VALUE="7.87" BBK_DIFF="0.3" BBK_DIFF_Y="24.4"/>
      <bbk:Obs TIME_PERIOD="1979-11" OBS_VALUE="7.84" BBK_DIFF="-2.5" BBK_DIFF_Y="25.5"/>
      <bbk:Obs TIME_PERIOD="1979-10" OBS_VALUE="8.04" BBK_DIFF="6.8" BBK_DIFF_Y="33.4"/>
      <bbk:Obs TIME_PERIOD="1979-09" OBS_VALUE="7.53" BBK_DIFF="0.8" BBK_DIFF_Y="26.4"/>
      <bbk:Obs TIME_PERIOD="1979-08" OBS_VALUE="7.47" BBK_DIFF="-1.4" BBK_DIFF_Y="23.9"/>
      <bbk:Obs TIME_PERIOD="1979-07" OBS_VALUE="7.58" BBK_DIFF="-3.1" BBK_DIFF_Y="24.4"/>
      <bbk:Obs TIME_PERIOD="1979-06" OBS_VALUE="7.82" BBK_DIFF="1.0" BBK_DIFF_Y="39.6"/>
      <bbk:Obs TIME_PERIOD="1979-05" OBS_VALUE="7.74" BBK_DIFF="7.3" BBK_DIFF_Y="43.8"/>
      <bbk:Obs TIME_PERIOD="1979-04" OBS_VALUE="7.22" BBK_DIFF="4.7" BBK_DIFF_Y="38.6"/>
      <bbk:Obs TIME_PERIOD="1979-03" OBS_VALUE="6.89" BBK_DIFF="1.6" BBK_DIFF_Y="34.4"/>
      <bbk:Obs TIME_PERIOD="1979-02" OBS_VALUE="6.78" BBK_DIFF="3.7" BBK_DIFF_Y="32.9"/>
      <bbk:Obs TIME_PERIOD="1979-01" OBS_VALUE="6.54" BBK_DIFF="3.5" BBK_DIFF_Y="23.6"/>
      <bbk:Obs TIME_PERIOD="1978-12" OBS_VALUE="6.32" BBK_DIFF="1.2" BBK_DIFF_Y="15.8"/>
      <bbk:Obs TIME_PERIOD="1978-11" OBS_VALUE="6.25" BBK_DIFF="3.7" BBK_DIFF_Y="11.1"/>
      <bbk:Obs TIME_PERIOD="1978-10" OBS_VALUE="6.03" BBK_DIFF="1.1" BBK_DIFF_Y="7.2"/>
      <bbk:Obs TIME_PERIOD="1978-09" OBS_VALUE="5.96" BBK_DIFF="-1.1" BBK_DIFF_Y="5.7"/>
      <bbk:Obs TIME_PERIOD="1978-08" OBS_VALUE="6.03" BBK_DIFF="-1.1" BBK_DIFF_Y="7.1"/>
      <bbk:Obs TIME_PERIOD="1978-07" OBS_VALUE="6.09" BBK_DIFF="8.8" BBK_DIFF_Y="4.7"/>
      <bbk:Obs TIME_PERIOD="1978-06" OBS_VALUE="5.6" BBK_DIFF="4.1" BBK_DIFF_Y="-8.1"/>
      <bbk:Obs TIME_PERIOD="1978-05" OBS_VALUE="5.38" BBK_DIFF="3.4" BBK_DIFF_Y="-12.4"/>
      <bbk:Obs TIME_PERIOD="1978-04" OBS_VALUE="5.21" BBK_DIFF="1.6" BBK_DIFF_Y="-16.0"/>
      <bbk:Obs TIME_PERIOD="1978-03" OBS_VALUE="5.13" BBK_DIFF="0.5" BBK_DIFF_Y="-21.2"/>
      <bbk:Obs TIME_PERIOD="1978-02" OBS_VALUE="5.1" BBK_DIFF="-3.6" BBK_DIFF_Y="-27.0"/>
      <bbk:Obs TIME_PERIOD="1978-01" OBS_VALUE="5.29" BBK_DIFF="-3.0" BBK_DIFF_Y="-25.0"/>
      <bbk:Obs TIME_PERIOD="1977-12" OBS_VALUE="5.46" BBK_DIFF="-3.0" BBK_DIFF_Y="-25.0"/>
      <bbk:Obs TIME_PERIOD="1977-11" OBS_VALUE="5.63" BBK_DIFF="0.0" BBK_DIFF_Y="-23.2"/>
      <bbk:Obs TIME_PERIOD="1977-10" OBS_VALUE="5.62" BBK_DIFF="-0.3" BBK_DIFF_Y="-26.4"/>
      <bbk:Obs TIME_PERIOD="1977-09" OBS_VALUE="5.64" BBK_DIFF="0.2" BBK_DIFF_Y="-27.9"/>
      <bbk:Obs TIME_PERIOD="1977-08" OBS_VALUE="5.63" BBK_DIFF="-3.2" BBK_DIFF_Y="-29.4"/>
      <bbk:Obs TIME_PERIOD="1977-07" OBS_VALUE="5.82" BBK_DIFF="-4.6" BBK_DIFF_Y="-28.3"/>
      <bbk:Obs TIME_PERIOD="1977-06" OBS_VALUE="6.1" BBK_DIFF="-0.8" BBK_DIFF_Y="-23.7"/>
      <bbk:Obs TIME_PERIOD="1977-05" OBS_VALUE="6.15" BBK_DIFF="-0.8" BBK_DIFF_Y="-22.7"/>
      <bbk:Obs TIME_PERIOD="1977-04" OBS_VALUE="6.2" BBK_DIFF="-4.7" BBK_DIFF_Y="-18.8"/>
      <bbk:Obs TIME_PERIOD="1977-03" OBS_VALUE="6.5" BBK_DIFF="-7.0" BBK_DIFF_Y="-13.4"/>
      <bbk:Obs TIME_PERIOD="1977-02" OBS_VALUE="6.99" BBK_DIFF="-1.0" BBK_DIFF_Y="-9.2"/>
      <bbk:Obs TIME_PERIOD="1977-01" OBS_VALUE="7.06" BBK_DIFF="-3.0" BBK_DIFF_Y="-11.4"/>
      <bbk:Obs TIME_PERIOD="1976-12" OBS_VALUE="7.28" BBK_DIFF="-0.7" BBK_DIFF_Y="-11.6"/>
      <bbk:Obs TIME_PERIOD="1976-11" OBS_VALUE="7.33" BBK_DIFF="-4.1" BBK_DIFF_Y="-11.1"/>
      <bbk:Obs TIME_PERIOD="1976-10" OBS_VALUE="7.64" BBK_DIFF="-2.3" BBK_DIFF_Y="-7.8"/>
      <bbk:Obs TIME_PERIOD="1976-09" OBS_VALUE="7.82" BBK_DIFF="-2.0" BBK_DIFF_Y="-2.4"/>
      <bbk:Obs TIME_PERIOD="1976-08" OBS_VALUE="7.97" BBK_DIFF="-1.7" BBK_DIFF_Y="-0.5"/>
      <bbk:Obs TIME_PERIOD="1976-07" OBS_VALUE="8.12" BBK_DIFF="1.5" BBK_DIFF_Y="1.2"/>
      <bbk:Obs TIME_PERIOD="1976-06" OBS_VALUE="7.99" BBK_DIFF="0.5" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1976-05" OBS_VALUE="7.95" BBK_DIFF="4.2" BBK_DIFF_Y="-0.8"/>
      <bbk:Obs TIME_PERIOD="1976-04" OBS_VALUE="7.63" BBK_DIFF="1.7" BBK_DIFF_Y="-7.1"/>
      <bbk:Obs TIME_PERIOD="1976-03" OBS_VALUE="7.51" BBK_DIFF="-2.4" BBK_DIFF_Y="-11.6"/>
      <bbk:Obs TIME_PERIOD="1976-02" OBS_VALUE="7.7" BBK_DIFF="-3.4" BBK_DIFF_Y="-8.5"/>
      <bbk:Obs TIME_PERIOD="1976-01" OBS_VALUE="7.97" BBK_DIFF="-3.2" BBK_DIFF_Y="-8.2"/>
      <bbk:Obs TIME_PERIOD="1975-12" OBS_VALUE="8.23" BBK_DIFF="-0.2" BBK_DIFF_Y="-12.9"/>
      <bbk:Obs TIME_PERIOD="1975-11" OBS_VALUE="8.25" BBK_DIFF="-0.5" BBK_DIFF_Y="-15.3"/>
      <bbk:Obs TIME_PERIOD="1975-10" OBS_VALUE="8.29" BBK_DIFF="3.4" BBK_DIFF_Y="-20.2"/>
      <bbk:Obs TIME_PERIOD="1975-09" OBS_VALUE="8.01" BBK_DIFF="-0.1" BBK_DIFF_Y="-23.0"/>
      <bbk:Obs TIME_PERIOD="1975-08" OBS_VALUE="8.02" BBK_DIFF="0.0" BBK_DIFF_Y="-22.4"/>
      <bbk:Obs TIME_PERIOD="1975-07" OBS_VALUE="8.02" BBK_DIFF="-0.1" BBK_DIFF_Y="-22.6"/>
      <bbk:Obs TIME_PERIOD="1975-06" OBS_VALUE="8.03" BBK_DIFF="0.1" BBK_DIFF_Y="-21.9"/>
      <bbk:Obs TIME_PERIOD="1975-05" OBS_VALUE="8.02" BBK_DIFF="-2.3" BBK_DIFF_Y="-24.0"/>
      <bbk:Obs TIME_PERIOD="1975-04" OBS_VALUE="8.21" BBK_DIFF="-3.3" BBK_DIFF_Y="-18.8"/>
      <bbk:Obs TIME_PERIOD="1975-03" OBS_VALUE="8.49" BBK_DIFF="0.9" BBK_DIFF_Y="-16.1"/>
      <bbk:Obs TIME_PERIOD="1975-02" OBS_VALUE="8.41" BBK_DIFF="-3.1" BBK_DIFF_Y="-16.2"/>
      <bbk:Obs TIME_PERIOD="1975-01" OBS_VALUE="8.68" BBK_DIFF="-8.2" BBK_DIFF_Y="-7.0"/>
      <bbk:Obs TIME_PERIOD="1974-12" OBS_VALUE="9.45" BBK_DIFF="-2.9" BBK_DIFF_Y="1.6"/>
      <bbk:Obs TIME_PERIOD="1974-11" OBS_VALUE="9.74" BBK_DIFF="-6.3" BBK_DIFF_Y="4.6"/>
      <bbk:Obs TIME_PERIOD="1974-10" OBS_VALUE="10.39" BBK_DIFF="-0.2" BBK_DIFF_Y="10.9"/>
      <bbk:Obs TIME_PERIOD="1974-09" OBS_VALUE="10.41" BBK_DIFF="0.7" BBK_DIFF_Y="8.9"/>
      <bbk:Obs TIME_PERIOD="1974-08" OBS_VALUE="10.33" BBK_DIFF="-0.2" BBK_DIFF_Y="10.0"/>
      <bbk:Obs TIME_PERIOD="1974-07" OBS_VALUE="10.36" BBK_DIFF="0.7" BBK_DIFF_Y="4.7"/>
      <bbk:Obs TIME_PERIOD="1974-06" OBS_VALUE="10.29" BBK_DIFF="-2.5" BBK_DIFF_Y="8.5"/>
      <bbk:Obs TIME_PERIOD="1974-05" OBS_VALUE="10.55" BBK_DIFF="4.4" BBK_DIFF_Y="11.6"/>
      <bbk:Obs TIME_PERIOD="1974-04" OBS_VALUE="10.11" BBK_DIFF="-0.1" BBK_DIFF_Y="15.9"/>
      <bbk:Obs TIME_PERIOD="1974-03" OBS_VALUE="10.12" BBK_DIFF="0.8" BBK_DIFF_Y="19.3"/>
      <bbk:Obs TIME_PERIOD="1974-02" OBS_VALUE="10.04" BBK_DIFF="7.6" BBK_DIFF_Y="21.9"/>
      <bbk:Obs TIME_PERIOD="1974-01" OBS_VALUE="9.34" BBK_DIFF="0.3" BBK_DIFF_Y="12.1"/>
      <bbk:Obs TIME_PERIOD="1973-12" OBS_VALUE="9.3" BBK_DIFF="0.0" BBK_DIFF_Y="11.5"/>
      <bbk:Obs TIME_PERIOD="1973-11" OBS_VALUE="9.31" BBK_DIFF="-0.6" BBK_DIFF_Y="12.3"/>
      <bbk:Obs TIME_PERIOD="1973-10" OBS_VALUE="9.36" BBK_DIFF="-2.0" BBK_DIFF_Y="14.4"/>
      <bbk:Obs TIME_PERIOD="1973-09" OBS_VALUE="9.55" BBK_DIFF="1.7" BBK_DIFF_Y="26.1"/>
      <bbk:Obs TIME_PERIOD="1973-08" OBS_VALUE="9.39" BBK_DIFF="-5.1"/>
      <bbk:Obs TIME_PERIOD="1973-07" OBS_VALUE="9.89" BBK_DIFF="4.4"/>
      <bbk:Obs TIME_PERIOD="1973-06" OBS_VALUE="9.48" BBK_DIFF="0.2"/>
      <bbk:Obs TIME_PERIOD="1973-05" OBS_VALUE="9.46" BBK_DIFF="8.4"/>
      <bbk:Obs TIME_PERIOD="1973-04" OBS_VALUE="8.73" BBK_DIFF="2.8"/>
      <bbk:Obs TIME_PERIOD="1973-03" OBS_VALUE="8.48" BBK_DIFF="3.0"/>
      <bbk:Obs TIME_PERIOD="1973-02" OBS_VALUE="8.24" BBK_DIFF="-1.1"/>
      <bbk:Obs TIME_PERIOD="1973-01" OBS_VALUE="8.33" BBK_DIFF="-0.2"/>
      <bbk:Obs TIME_PERIOD="1972-12" OBS_VALUE="8.34" BBK_DIFF="0.7"/>
      <bbk:Obs TIME_PERIOD="1972-11" OBS_VALUE="8.29" BBK_DIFF="1.2"/>
      <bbk:Obs TIME_PERIOD="1972-10" OBS_VALUE="8.19" BBK_DIFF="8.1"/>
      <bbk:Obs TIME_PERIOD="1972-09" OBS_VALUE="7.58"/>
    </bbk:Series>
  </bbk:DataSet>
</CompactData>
