<?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>BBEX3_M_SEK_DEM_AA_AC_A02</ID>
    <Test>false</Test>
    <Truncated>false</Truncated>
    <Prepared>2026-05-05T06:04:26</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_ERX">
    <bbk:Series FREQ="M" BBK_ID="BBEX3.M.SEK.DEM.AA.AC.A02" DECIMALS="3" UNIT="DEM" UNIT_MULT="0" BBK_TITLE="Devisenkurse der Frankfurter Börse / 100 SEK = ... DEM / Schweden" BBK_TITLE_ENG="Exchange rates on the Frankfurt exchange / SEK 100 = DEM ... / Sweden" BBK_COMM_GEN="Vom 21. Dezember 1949 bis 17. Mai 1953 Devisen-Umrechnungssätze der Bank deutscher Länder (Vorgängerinstitut der Deutschen Bundesbank). Vom 18. Mai 1953 bis 30. Dezember 1998 amtliche Notierung (Abstand des Geld- bzw. Briefkurses vom Mittelkurs in DEM: 0,080 bis Ende 1993, 0,060 ab 1994). Ab Januar 1999 Euro-Referenzkurse der Europäischen Zentralbank, siehe BBEX3:M:SEK:EUR:BB:AC:A02." BBK_COMM_GEN_ENG="From 21 December 1949 to 17 May 1953, foreign-exchange conversion rates of the Bank deutscher Länder (the predecessor of the Deutsche Bundesbank). From 18 May 1953 to 30 December 1998, official quotation on the Frankfurt exchange (difference between buying or selling rate in DEM: 0.080 up to the end of 1993, 0.060 since 1994). From January 1999, euro foreign exchange reference rates published by the European Central Bank, see BBEX3:M:SEK:EUR:BB:AC:A02." BBK_COMM_METH="Die Durchschnitte wurden aus den täglichen Notierungen errechnet." BBK_COMM_METH_ENG="Average calculated from daily quotations.">
      <bbk:Obs TIME_PERIOD="1998-12" OBS_VALUE="20.711" BBK_DIFF="-1.6" BBK_DIFF_Y="-9.3"/>
      <bbk:Obs TIME_PERIOD="1998-11" OBS_VALUE="21.04" BBK_DIFF="0.7" BBK_DIFF_Y="-8.2"/>
      <bbk:Obs TIME_PERIOD="1998-10" OBS_VALUE="20.894" BBK_DIFF="-3.0" BBK_DIFF_Y="-10.0"/>
      <bbk:Obs TIME_PERIOD="1998-09" OBS_VALUE="21.531" BBK_DIFF="-2.1" BBK_DIFF_Y="-7.3"/>
      <bbk:Obs TIME_PERIOD="1998-08" OBS_VALUE="21.991" BBK_DIFF="-2.3" BBK_DIFF_Y="-4.5"/>
      <bbk:Obs TIME_PERIOD="1998-07" OBS_VALUE="22.508" BBK_DIFF="-0.7" BBK_DIFF_Y="-1.9"/>
      <bbk:Obs TIME_PERIOD="1998-06" OBS_VALUE="22.66" BBK_DIFF="-1.8" BBK_DIFF_Y="1.6"/>
      <bbk:Obs TIME_PERIOD="1998-05" OBS_VALUE="23.068" BBK_DIFF="-0.6" BBK_DIFF_Y="3.9"/>
      <bbk:Obs TIME_PERIOD="1998-04" OBS_VALUE="23.2" BBK_DIFF="1.2" BBK_DIFF_Y="4.1"/>
      <bbk:Obs TIME_PERIOD="1998-03" OBS_VALUE="22.925" BBK_DIFF="2.1" BBK_DIFF_Y="3.5"/>
      <bbk:Obs TIME_PERIOD="1998-02" OBS_VALUE="22.46" BBK_DIFF="-0.9" BBK_DIFF_Y="-0.7"/>
      <bbk:Obs TIME_PERIOD="1998-01" OBS_VALUE="22.669" BBK_DIFF="-0.7" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1997-12" OBS_VALUE="22.84" BBK_DIFF="-0.3" BBK_DIFF_Y="0.4"/>
      <bbk:Obs TIME_PERIOD="1997-11" OBS_VALUE="22.909" BBK_DIFF="-1.3" BBK_DIFF_Y="0.4"/>
      <bbk:Obs TIME_PERIOD="1997-10" OBS_VALUE="23.213" BBK_DIFF="0.0" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1997-09" OBS_VALUE="23.218" BBK_DIFF="0.8" BBK_DIFF_Y="2.3"/>
      <bbk:Obs TIME_PERIOD="1997-08" OBS_VALUE="23.036" BBK_DIFF="0.4" BBK_DIFF_Y="2.8"/>
      <bbk:Obs TIME_PERIOD="1997-07" OBS_VALUE="22.936" BBK_DIFF="2.9" BBK_DIFF_Y="1.3"/>
      <bbk:Obs TIME_PERIOD="1997-06" OBS_VALUE="22.296" BBK_DIFF="0.4" BBK_DIFF_Y="-2.5"/>
      <bbk:Obs TIME_PERIOD="1997-05" OBS_VALUE="22.199" BBK_DIFF="-0.4" BBK_DIFF_Y="-1.5"/>
      <bbk:Obs TIME_PERIOD="1997-04" OBS_VALUE="22.278" BBK_DIFF="0.5" BBK_DIFF_Y="-0.6"/>
      <bbk:Obs TIME_PERIOD="1997-03" OBS_VALUE="22.16" BBK_DIFF="-2.1" BBK_DIFF_Y="1.0"/>
      <bbk:Obs TIME_PERIOD="1997-02" OBS_VALUE="22.629" BBK_DIFF="-0.5" BBK_DIFF_Y="6.2"/>
      <bbk:Obs TIME_PERIOD="1997-01" OBS_VALUE="22.739" BBK_DIFF="-0.1" BBK_DIFF_Y="4.6"/>
      <bbk:Obs TIME_PERIOD="1996-12" OBS_VALUE="22.758" BBK_DIFF="-0.2" BBK_DIFF_Y="4.8"/>
      <bbk:Obs TIME_PERIOD="1996-11" OBS_VALUE="22.815" BBK_DIFF="-1.5" BBK_DIFF_Y="6.2"/>
      <bbk:Obs TIME_PERIOD="1996-10" OBS_VALUE="23.154" BBK_DIFF="2.1" BBK_DIFF_Y="11.7"/>
      <bbk:Obs TIME_PERIOD="1996-09" OBS_VALUE="22.686" BBK_DIFF="1.3" BBK_DIFF_Y="10.8"/>
      <bbk:Obs TIME_PERIOD="1996-08" OBS_VALUE="22.4" BBK_DIFF="-1.1" BBK_DIFF_Y="12.1"/>
      <bbk:Obs TIME_PERIOD="1996-07" OBS_VALUE="22.651" BBK_DIFF="-0.9" BBK_DIFF_Y="17.0"/>
      <bbk:Obs TIME_PERIOD="1996-06" OBS_VALUE="22.868" BBK_DIFF="1.4" BBK_DIFF_Y="18.5"/>
      <bbk:Obs TIME_PERIOD="1996-05" OBS_VALUE="22.548" BBK_DIFF="0.6" BBK_DIFF_Y="16.8"/>
      <bbk:Obs TIME_PERIOD="1996-04" OBS_VALUE="22.415" BBK_DIFF="2.2" BBK_DIFF_Y="19.2"/>
      <bbk:Obs TIME_PERIOD="1996-03" OBS_VALUE="21.939" BBK_DIFF="3.0" BBK_DIFF_Y="13.5"/>
      <bbk:Obs TIME_PERIOD="1996-02" OBS_VALUE="21.307" BBK_DIFF="-2.0" BBK_DIFF_Y="4.8"/>
      <bbk:Obs TIME_PERIOD="1996-01" OBS_VALUE="21.735" BBK_DIFF="0.1" BBK_DIFF_Y="5.9"/>
      <bbk:Obs TIME_PERIOD="1995-12" OBS_VALUE="21.718" BBK_DIFF="1.1" BBK_DIFF_Y="3.8"/>
      <bbk:Obs TIME_PERIOD="1995-11" OBS_VALUE="21.478" BBK_DIFF="3.6" BBK_DIFF_Y="2.6"/>
      <bbk:Obs TIME_PERIOD="1995-10" OBS_VALUE="20.731" BBK_DIFF="1.2" BBK_DIFF_Y="-1.0"/>
      <bbk:Obs TIME_PERIOD="1995-09" OBS_VALUE="20.48" BBK_DIFF="2.5" BBK_DIFF_Y="-0.5"/>
      <bbk:Obs TIME_PERIOD="1995-08" OBS_VALUE="19.986" BBK_DIFF="3.3" BBK_DIFF_Y="-1.1"/>
      <bbk:Obs TIME_PERIOD="1995-07" OBS_VALUE="19.355" BBK_DIFF="0.3" BBK_DIFF_Y="-4.4"/>
      <bbk:Obs TIME_PERIOD="1995-06" OBS_VALUE="19.296" BBK_DIFF="-0.1" BBK_DIFF_Y="-7.5"/>
      <bbk:Obs TIME_PERIOD="1995-05" OBS_VALUE="19.307" BBK_DIFF="2.7" BBK_DIFF_Y="-10.1"/>
      <bbk:Obs TIME_PERIOD="1995-04" OBS_VALUE="18.804" BBK_DIFF="-2.7" BBK_DIFF_Y="-12.7"/>
      <bbk:Obs TIME_PERIOD="1995-03" OBS_VALUE="19.333" BBK_DIFF="-4.9" BBK_DIFF_Y="-9.6"/>
      <bbk:Obs TIME_PERIOD="1995-02" OBS_VALUE="20.326" BBK_DIFF="-1.0" BBK_DIFF_Y="-6.5"/>
      <bbk:Obs TIME_PERIOD="1995-01" OBS_VALUE="20.522" BBK_DIFF="-1.9" BBK_DIFF_Y="-4.4"/>
      <bbk:Obs TIME_PERIOD="1994-12" OBS_VALUE="20.916" BBK_DIFF="-0.1" BBK_DIFF_Y="2.3"/>
      <bbk:Obs TIME_PERIOD="1994-11" OBS_VALUE="20.927" BBK_DIFF="-0.1" BBK_DIFF_Y="1.8"/>
      <bbk:Obs TIME_PERIOD="1994-10" OBS_VALUE="20.944" BBK_DIFF="1.7" BBK_DIFF_Y="2.5"/>
      <bbk:Obs TIME_PERIOD="1994-09" OBS_VALUE="20.592" BBK_DIFF="1.9" BBK_DIFF_Y="1.7"/>
      <bbk:Obs TIME_PERIOD="1994-08" OBS_VALUE="20.217" BBK_DIFF="-0.2" BBK_DIFF_Y="-3.9"/>
      <bbk:Obs TIME_PERIOD="1994-07" OBS_VALUE="20.249" BBK_DIFF="-3.0" BBK_DIFF_Y="-6.0"/>
      <bbk:Obs TIME_PERIOD="1994-06" OBS_VALUE="20.869" BBK_DIFF="-2.8" BBK_DIFF_Y="-6.1"/>
      <bbk:Obs TIME_PERIOD="1994-05" OBS_VALUE="21.478" BBK_DIFF="-0.3" BBK_DIFF_Y="-2.0"/>
      <bbk:Obs TIME_PERIOD="1994-04" OBS_VALUE="21.54" BBK_DIFF="0.8" BBK_DIFF_Y="0.4"/>
      <bbk:Obs TIME_PERIOD="1994-03" OBS_VALUE="21.379" BBK_DIFF="-1.7" BBK_DIFF_Y="0.5"/>
      <bbk:Obs TIME_PERIOD="1994-02" OBS_VALUE="21.748" BBK_DIFF="1.4" BBK_DIFF_Y="-0.2"/>
      <bbk:Obs TIME_PERIOD="1994-01" OBS_VALUE="21.458" BBK_DIFF="4.9" BBK_DIFF_Y="-3.6"/>
      <bbk:Obs TIME_PERIOD="1993-12" OBS_VALUE="20.45" BBK_DIFF="-0.6" BBK_DIFF_Y="-10.9"/>
      <bbk:Obs TIME_PERIOD="1993-11" OBS_VALUE="20.566" BBK_DIFF="0.7" BBK_DIFF_Y="-19.5"/>
      <bbk:Obs TIME_PERIOD="1993-10" OBS_VALUE="20.429" BBK_DIFF="0.9" BBK_DIFF_Y="-22.9"/>
      <bbk:Obs TIME_PERIOD="1993-09" OBS_VALUE="20.241" BBK_DIFF="-3.8" BBK_DIFF_Y="-25.1"/>
      <bbk:Obs TIME_PERIOD="1993-08" OBS_VALUE="21.03" BBK_DIFF="-2.4" BBK_DIFF_Y="-23.4"/>
      <bbk:Obs TIME_PERIOD="1993-07" OBS_VALUE="21.539" BBK_DIFF="-3.0" BBK_DIFF_Y="-21.9"/>
      <bbk:Obs TIME_PERIOD="1993-06" OBS_VALUE="22.216" BBK_DIFF="1.4" BBK_DIFF_Y="-19.8"/>
      <bbk:Obs TIME_PERIOD="1993-05" OBS_VALUE="21.912" BBK_DIFF="2.1" BBK_DIFF_Y="-21.1"/>
      <bbk:Obs TIME_PERIOD="1993-04" OBS_VALUE="21.454" BBK_DIFF="0.8" BBK_DIFF_Y="-22.4"/>
      <bbk:Obs TIME_PERIOD="1993-03" OBS_VALUE="21.28" BBK_DIFF="-2.3" BBK_DIFF_Y="-22.8"/>
      <bbk:Obs TIME_PERIOD="1993-02" OBS_VALUE="21.788" BBK_DIFF="-2.1" BBK_DIFF_Y="-20.9"/>
      <bbk:Obs TIME_PERIOD="1993-01" OBS_VALUE="22.261" BBK_DIFF="-3.0" BBK_DIFF_Y="-19.0"/>
      <bbk:Obs TIME_PERIOD="1992-12" OBS_VALUE="22.946" BBK_DIFF="-10.2" BBK_DIFF_Y="-16.1"/>
      <bbk:Obs TIME_PERIOD="1992-11" OBS_VALUE="25.559" BBK_DIFF="-3.6" BBK_DIFF_Y="-6.6"/>
      <bbk:Obs TIME_PERIOD="1992-10" OBS_VALUE="26.51" BBK_DIFF="-1.9" BBK_DIFF_Y="-3.4"/>
      <bbk:Obs TIME_PERIOD="1992-09" OBS_VALUE="27.033" BBK_DIFF="-1.5" BBK_DIFF_Y="-1.6"/>
      <bbk:Obs TIME_PERIOD="1992-08" OBS_VALUE="27.453" BBK_DIFF="-0.5" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1992-07" OBS_VALUE="27.578" BBK_DIFF="-0.4" BBK_DIFF_Y="-0.2"/>
      <bbk:Obs TIME_PERIOD="1992-06" OBS_VALUE="27.7" BBK_DIFF="-0.2" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1992-05" OBS_VALUE="27.763" BBK_DIFF="0.5" BBK_DIFF_Y="-0.6"/>
      <bbk:Obs TIME_PERIOD="1992-04" OBS_VALUE="27.63" BBK_DIFF="0.2" BBK_DIFF_Y="-0.7"/>
      <bbk:Obs TIME_PERIOD="1992-03" OBS_VALUE="27.572" BBK_DIFF="0.1" BBK_DIFF_Y="1.2"/>
      <bbk:Obs TIME_PERIOD="1992-02" OBS_VALUE="27.553" BBK_DIFF="0.3" BBK_DIFF_Y="3.1"/>
      <bbk:Obs TIME_PERIOD="1992-01" OBS_VALUE="27.467" BBK_DIFF="0.5" BBK_DIFF_Y="2.5"/>
      <bbk:Obs TIME_PERIOD="1991-12" OBS_VALUE="27.336" BBK_DIFF="-0.1" BBK_DIFF_Y="2.9"/>
      <bbk:Obs TIME_PERIOD="1991-11" OBS_VALUE="27.36" BBK_DIFF="-0.3" BBK_DIFF_Y="2.4"/>
      <bbk:Obs TIME_PERIOD="1991-10" OBS_VALUE="27.447" BBK_DIFF="-0.1" BBK_DIFF_Y="1.6"/>
      <bbk:Obs TIME_PERIOD="1991-09" OBS_VALUE="27.476" BBK_DIFF="-0.3" BBK_DIFF_Y="0.9"/>
      <bbk:Obs TIME_PERIOD="1991-08" OBS_VALUE="27.545" BBK_DIFF="-0.3" BBK_DIFF_Y="1.3"/>
      <bbk:Obs TIME_PERIOD="1991-07" OBS_VALUE="27.637" BBK_DIFF="-0.4" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1991-06" OBS_VALUE="27.739" BBK_DIFF="-0.7" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1991-05" OBS_VALUE="27.922" BBK_DIFF="0.3" BBK_DIFF_Y="1.7"/>
      <bbk:Obs TIME_PERIOD="1991-04" OBS_VALUE="27.837" BBK_DIFF="2.2" BBK_DIFF_Y="0.9"/>
      <bbk:Obs TIME_PERIOD="1991-03" OBS_VALUE="27.239" BBK_DIFF="1.9" BBK_DIFF_Y="-1.5"/>
      <bbk:Obs TIME_PERIOD="1991-02" OBS_VALUE="26.733" BBK_DIFF="-0.2" BBK_DIFF_Y="-2.8"/>
      <bbk:Obs TIME_PERIOD="1991-01" OBS_VALUE="26.79" BBK_DIFF="0.8" BBK_DIFF_Y="-2.3"/>
      <bbk:Obs TIME_PERIOD="1990-12" OBS_VALUE="26.573" BBK_DIFF="-0.5" BBK_DIFF_Y="-4.0"/>
      <bbk:Obs TIME_PERIOD="1990-11" OBS_VALUE="26.717" BBK_DIFF="-1.1" BBK_DIFF_Y="-6.2"/>
      <bbk:Obs TIME_PERIOD="1990-10" OBS_VALUE="27.018" BBK_DIFF="-0.8" BBK_DIFF_Y="-6.6"/>
      <bbk:Obs TIME_PERIOD="1990-09" OBS_VALUE="27.228" BBK_DIFF="0.2" BBK_DIFF_Y="-7.9"/>
      <bbk:Obs TIME_PERIOD="1990-08" OBS_VALUE="27.187" BBK_DIFF="-1.4" BBK_DIFF_Y="-7.7"/>
      <bbk:Obs TIME_PERIOD="1990-07" OBS_VALUE="27.56" BBK_DIFF="-0.3" BBK_DIFF_Y="-5.9"/>
      <bbk:Obs TIME_PERIOD="1990-06" OBS_VALUE="27.655" BBK_DIFF="0.7" BBK_DIFF_Y="-6.7"/>
      <bbk:Obs TIME_PERIOD="1990-05" OBS_VALUE="27.462" BBK_DIFF="-0.5" BBK_DIFF_Y="-7.3"/>
      <bbk:Obs TIME_PERIOD="1990-04" OBS_VALUE="27.591" BBK_DIFF="-0.3" BBK_DIFF_Y="-6.1"/>
      <bbk:Obs TIME_PERIOD="1990-03" OBS_VALUE="27.667" BBK_DIFF="0.6" BBK_DIFF_Y="-5.4"/>
      <bbk:Obs TIME_PERIOD="1990-02" OBS_VALUE="27.491" BBK_DIFF="0.3" BBK_DIFF_Y="-6.2"/>
      <bbk:Obs TIME_PERIOD="1990-01" OBS_VALUE="27.416" BBK_DIFF="-0.9" BBK_DIFF_Y="-6.3" BBK_COMM_OBS="Vom 26. Januar bis 16. Februar 1990 Notierung ausgesetzt." BBK_COMM_OBS_ENG="Quotation suspended from 26 January to 16 February 1990."/>
      <bbk:Obs TIME_PERIOD="1989-12" OBS_VALUE="27.678" BBK_DIFF="-2.9" BBK_DIFF_Y="-4.1"/>
      <bbk:Obs TIME_PERIOD="1989-11" OBS_VALUE="28.496" BBK_DIFF="-1.5" BBK_DIFF_Y="-0.9"/>
      <bbk:Obs TIME_PERIOD="1989-10" OBS_VALUE="28.942" BBK_DIFF="-2.1" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1989-09" OBS_VALUE="29.554" BBK_DIFF="0.3" BBK_DIFF_Y="1.9"/>
      <bbk:Obs TIME_PERIOD="1989-08" OBS_VALUE="29.465" BBK_DIFF="0.6" BBK_DIFF_Y="1.1"/>
      <bbk:Obs TIME_PERIOD="1989-07" OBS_VALUE="29.285" BBK_DIFF="-1.2" BBK_DIFF_Y="0.7"/>
      <bbk:Obs TIME_PERIOD="1989-06" OBS_VALUE="29.637" BBK_DIFF="0.0" BBK_DIFF_Y="2.9"/>
      <bbk:Obs TIME_PERIOD="1989-05" OBS_VALUE="29.624" BBK_DIFF="0.8" BBK_DIFF_Y="3.3"/>
      <bbk:Obs TIME_PERIOD="1989-04" OBS_VALUE="29.386" BBK_DIFF="0.5" BBK_DIFF_Y="3.4"/>
      <bbk:Obs TIME_PERIOD="1989-03" OBS_VALUE="29.249" BBK_DIFF="-0.2" BBK_DIFF_Y="3.7"/>
      <bbk:Obs TIME_PERIOD="1989-02" OBS_VALUE="29.312" BBK_DIFF="0.1" BBK_DIFF_Y="4.5"/>
      <bbk:Obs TIME_PERIOD="1989-01" OBS_VALUE="29.274" BBK_DIFF="1.4" BBK_DIFF_Y="5.7"/>
      <bbk:Obs TIME_PERIOD="1988-12" OBS_VALUE="28.873" BBK_DIFF="0.5" BBK_DIFF_Y="5.0"/>
      <bbk:Obs TIME_PERIOD="1988-11" OBS_VALUE="28.742" BBK_DIFF="-1.0" BBK_DIFF_Y="3.8"/>
      <bbk:Obs TIME_PERIOD="1988-10" OBS_VALUE="29.018" BBK_DIFF="0.1" BBK_DIFF_Y="2.3"/>
      <bbk:Obs TIME_PERIOD="1988-09" OBS_VALUE="28.993" BBK_DIFF="-0.5" BBK_DIFF_Y="2.0"/>
      <bbk:Obs TIME_PERIOD="1988-08" OBS_VALUE="29.143" BBK_DIFF="0.2" BBK_DIFF_Y="1.8"/>
      <bbk:Obs TIME_PERIOD="1988-07" OBS_VALUE="29.077" BBK_DIFF="0.9" BBK_DIFF_Y="1.3"/>
      <bbk:Obs TIME_PERIOD="1988-06" OBS_VALUE="28.807" BBK_DIFF="0.4" BBK_DIFF_Y="0.4"/>
      <bbk:Obs TIME_PERIOD="1988-05" OBS_VALUE="28.69" BBK_DIFF="0.9" BBK_DIFF_Y="0.4"/>
      <bbk:Obs TIME_PERIOD="1988-04" OBS_VALUE="28.421" BBK_DIFF="0.7" BBK_DIFF_Y="-0.9"/>
      <bbk:Obs TIME_PERIOD="1988-03" OBS_VALUE="28.215" BBK_DIFF="0.6" BBK_DIFF_Y="-1.3"/>
      <bbk:Obs TIME_PERIOD="1988-02" OBS_VALUE="28.057" BBK_DIFF="1.3" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1988-01" OBS_VALUE="27.688" BBK_DIFF="0.7" BBK_DIFF_Y="-1.5"/>
      <bbk:Obs TIME_PERIOD="1987-12" OBS_VALUE="27.499" BBK_DIFF="-0.7" BBK_DIFF_Y="-4.6"/>
      <bbk:Obs TIME_PERIOD="1987-11" OBS_VALUE="27.701" BBK_DIFF="-2.4" BBK_DIFF_Y="-4.8"/>
      <bbk:Obs TIME_PERIOD="1987-10" OBS_VALUE="28.369" BBK_DIFF="-0.2" BBK_DIFF_Y="-2.6"/>
      <bbk:Obs TIME_PERIOD="1987-09" OBS_VALUE="28.425" BBK_DIFF="-0.8" BBK_DIFF_Y="-3.7"/>
      <bbk:Obs TIME_PERIOD="1987-08" OBS_VALUE="28.64" BBK_DIFF="-0.2" BBK_DIFF_Y="-3.8"/>
      <bbk:Obs TIME_PERIOD="1987-07" OBS_VALUE="28.698" BBK_DIFF="0.1" BBK_DIFF_Y="-5.9"/>
      <bbk:Obs TIME_PERIOD="1987-06" OBS_VALUE="28.68" BBK_DIFF="0.3" BBK_DIFF_Y="-7.6"/>
      <bbk:Obs TIME_PERIOD="1987-05" OBS_VALUE="28.582" BBK_DIFF="-0.4" BBK_DIFF_Y="-8.4"/>
      <bbk:Obs TIME_PERIOD="1987-04" OBS_VALUE="28.692" BBK_DIFF="0.3" BBK_DIFF_Y="-8.7"/>
      <bbk:Obs TIME_PERIOD="1987-03" OBS_VALUE="28.597" BBK_DIFF="1.8" BBK_DIFF_Y="-8.6"/>
      <bbk:Obs TIME_PERIOD="1987-02" OBS_VALUE="28.081" BBK_DIFF="-0.1" BBK_DIFF_Y="-11.0"/>
      <bbk:Obs TIME_PERIOD="1987-01" OBS_VALUE="28.108" BBK_DIFF="-2.5" BBK_DIFF_Y="-12.6"/>
      <bbk:Obs TIME_PERIOD="1986-12" OBS_VALUE="28.828" BBK_DIFF="-0.9" BBK_DIFF_Y="-12.0"/>
      <bbk:Obs TIME_PERIOD="1986-11" OBS_VALUE="29.099" BBK_DIFF="-0.1" BBK_DIFF_Y="-12.4"/>
      <bbk:Obs TIME_PERIOD="1986-10" OBS_VALUE="29.128" BBK_DIFF="-1.3" BBK_DIFF_Y="-12.4"/>
      <bbk:Obs TIME_PERIOD="1986-09" OBS_VALUE="29.526" BBK_DIFF="-0.8" BBK_DIFF_Y="-12.7"/>
      <bbk:Obs TIME_PERIOD="1986-08" OBS_VALUE="29.774" BBK_DIFF="-2.3" BBK_DIFF_Y="-11.4"/>
      <bbk:Obs TIME_PERIOD="1986-07" OBS_VALUE="30.488" BBK_DIFF="-1.7" BBK_DIFF_Y="-11.3"/>
      <bbk:Obs TIME_PERIOD="1986-06" OBS_VALUE="31.029" BBK_DIFF="-0.5" BBK_DIFF_Y="-10.4"/>
      <bbk:Obs TIME_PERIOD="1986-05" OBS_VALUE="31.188" BBK_DIFF="-0.7" BBK_DIFF_Y="-9.9"/>
      <bbk:Obs TIME_PERIOD="1986-04" OBS_VALUE="31.417" BBK_DIFF="0.4" BBK_DIFF_Y="-8.6"/>
      <bbk:Obs TIME_PERIOD="1986-03" OBS_VALUE="31.286" BBK_DIFF="-0.9" BBK_DIFF_Y="-10.8"/>
      <bbk:Obs TIME_PERIOD="1986-02" OBS_VALUE="31.563" BBK_DIFF="-1.9" BBK_DIFF_Y="-10.7"/>
      <bbk:Obs TIME_PERIOD="1986-01" OBS_VALUE="32.162" BBK_DIFF="-1.8" BBK_DIFF_Y="-8.0"/>
      <bbk:Obs TIME_PERIOD="1985-12" OBS_VALUE="32.744" BBK_DIFF="-1.4" BBK_DIFF_Y="-6.5"/>
      <bbk:Obs TIME_PERIOD="1985-11" OBS_VALUE="33.221" BBK_DIFF="0.0" BBK_DIFF_Y="-4.7"/>
      <bbk:Obs TIME_PERIOD="1985-10" OBS_VALUE="33.234" BBK_DIFF="-1.7" BBK_DIFF_Y="-5.9"/>
      <bbk:Obs TIME_PERIOD="1985-09" OBS_VALUE="33.811" BBK_DIFF="0.6" BBK_DIFF_Y="-4.1"/>
      <bbk:Obs TIME_PERIOD="1985-08" OBS_VALUE="33.598" BBK_DIFF="-2.2" BBK_DIFF_Y="-2.8"/>
      <bbk:Obs TIME_PERIOD="1985-07" OBS_VALUE="34.368" BBK_DIFF="-0.7" BBK_DIFF_Y="0.2"/>
      <bbk:Obs TIME_PERIOD="1985-06" OBS_VALUE="34.616" BBK_DIFF="0.1" BBK_DIFF_Y="2.4"/>
      <bbk:Obs TIME_PERIOD="1985-05" OBS_VALUE="34.598" BBK_DIFF="0.6" BBK_DIFF_Y="1.7"/>
      <bbk:Obs TIME_PERIOD="1985-04" OBS_VALUE="34.387" BBK_DIFF="-2.0" BBK_DIFF_Y="2.0"/>
      <bbk:Obs TIME_PERIOD="1985-03" OBS_VALUE="35.082" BBK_DIFF="-0.7" BBK_DIFF_Y="4.5"/>
      <bbk:Obs TIME_PERIOD="1985-02" OBS_VALUE="35.332" BBK_DIFF="1.1" BBK_DIFF_Y="4.7"/>
      <bbk:Obs TIME_PERIOD="1985-01" OBS_VALUE="34.956" BBK_DIFF="-0.2" BBK_DIFF_Y="1.7"/>
      <bbk:Obs TIME_PERIOD="1984-12" OBS_VALUE="35.034" BBK_DIFF="0.5" BBK_DIFF_Y="2.7"/>
      <bbk:Obs TIME_PERIOD="1984-11" OBS_VALUE="34.852" BBK_DIFF="-1.4" BBK_DIFF_Y="2.8"/>
      <bbk:Obs TIME_PERIOD="1984-10" OBS_VALUE="35.33" BBK_DIFF="0.2" BBK_DIFF_Y="5.6"/>
      <bbk:Obs TIME_PERIOD="1984-09" OBS_VALUE="35.272" BBK_DIFF="2.1" BBK_DIFF_Y="4.1"/>
      <bbk:Obs TIME_PERIOD="1984-08" OBS_VALUE="34.56" BBK_DIFF="0.8" BBK_DIFF_Y="1.6"/>
      <bbk:Obs TIME_PERIOD="1984-07" OBS_VALUE="34.298" BBK_DIFF="1.5" BBK_DIFF_Y="1.9"/>
      <bbk:Obs TIME_PERIOD="1984-06" OBS_VALUE="33.797" BBK_DIFF="-0.7" BBK_DIFF_Y="1.3"/>
      <bbk:Obs TIME_PERIOD="1984-05" OBS_VALUE="34.029" BBK_DIFF="0.9" BBK_DIFF_Y="3.3"/>
      <bbk:Obs TIME_PERIOD="1984-04" OBS_VALUE="33.721" BBK_DIFF="0.4" BBK_DIFF_Y="3.5"/>
      <bbk:Obs TIME_PERIOD="1984-03" OBS_VALUE="33.571" BBK_DIFF="-0.6" BBK_DIFF_Y="4.3"/>
      <bbk:Obs TIME_PERIOD="1984-02" OBS_VALUE="33.762" BBK_DIFF="-1.7" BBK_DIFF_Y="3.3"/>
      <bbk:Obs TIME_PERIOD="1984-01" OBS_VALUE="34.361" BBK_DIFF="0.7" BBK_DIFF_Y="5.3"/>
      <bbk:Obs TIME_PERIOD="1983-12" OBS_VALUE="34.112" BBK_DIFF="0.6" BBK_DIFF_Y="3.7"/>
      <bbk:Obs TIME_PERIOD="1983-11" OBS_VALUE="33.905" BBK_DIFF="1.4" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1983-10" OBS_VALUE="33.445" BBK_DIFF="-1.3" BBK_DIFF_Y="-5.8"/>
      <bbk:Obs TIME_PERIOD="1983-09" OBS_VALUE="33.883" BBK_DIFF="-0.4" BBK_DIFF_Y="-15.7"/>
      <bbk:Obs TIME_PERIOD="1983-08" OBS_VALUE="34.016" BBK_DIFF="1.0" BBK_DIFF_Y="-15.8"/>
      <bbk:Obs TIME_PERIOD="1983-07" OBS_VALUE="33.667" BBK_DIFF="0.9" BBK_DIFF_Y="-16.5"/>
      <bbk:Obs TIME_PERIOD="1983-06" OBS_VALUE="33.374" BBK_DIFF="1.3" BBK_DIFF_Y="-17.3"/>
      <bbk:Obs TIME_PERIOD="1983-05" OBS_VALUE="32.932" BBK_DIFF="1.1" BBK_DIFF_Y="-17.6"/>
      <bbk:Obs TIME_PERIOD="1983-04" OBS_VALUE="32.589" BBK_DIFF="1.2" BBK_DIFF_Y="-19.6"/>
      <bbk:Obs TIME_PERIOD="1983-03" OBS_VALUE="32.201" BBK_DIFF="-1.4" BBK_DIFF_Y="-21.1"/>
      <bbk:Obs TIME_PERIOD="1983-02" OBS_VALUE="32.669" BBK_DIFF="0.1" BBK_DIFF_Y="-20.5"/>
      <bbk:Obs TIME_PERIOD="1983-01" OBS_VALUE="32.628" BBK_DIFF="-0.9" BBK_DIFF_Y="-20.0"/>
      <bbk:Obs TIME_PERIOD="1982-12" OBS_VALUE="32.908" BBK_DIFF="-3.3" BBK_DIFF_Y="-19.2"/>
      <bbk:Obs TIME_PERIOD="1982-11" OBS_VALUE="34.045" BBK_DIFF="-4.1" BBK_DIFF_Y="-16.1"/>
      <bbk:Obs TIME_PERIOD="1982-10" OBS_VALUE="35.507" BBK_DIFF="-11.7" BBK_DIFF_Y="-12.6"/>
      <bbk:Obs TIME_PERIOD="1982-09" OBS_VALUE="40.209" BBK_DIFF="-0.4" BBK_DIFF_Y="-7.7"/>
      <bbk:Obs TIME_PERIOD="1982-08" OBS_VALUE="40.39" BBK_DIFF="0.1" BBK_DIFF_Y="-14.4"/>
      <bbk:Obs TIME_PERIOD="1982-07" OBS_VALUE="40.338" BBK_DIFF="0.0" BBK_DIFF_Y="-14.4"/>
      <bbk:Obs TIME_PERIOD="1982-06" OBS_VALUE="40.336" BBK_DIFF="1.0" BBK_DIFF_Y="-14.3"/>
      <bbk:Obs TIME_PERIOD="1982-05" OBS_VALUE="39.956" BBK_DIFF="-1.4" BBK_DIFF_Y="-14.8"/>
      <bbk:Obs TIME_PERIOD="1982-04" OBS_VALUE="40.54" BBK_DIFF="-0.6" BBK_DIFF_Y="-12.0"/>
      <bbk:Obs TIME_PERIOD="1982-03" OBS_VALUE="40.787" BBK_DIFF="-0.7" BBK_DIFF_Y="-10.9"/>
      <bbk:Obs TIME_PERIOD="1982-02" OBS_VALUE="41.094" BBK_DIFF="0.7" BBK_DIFF_Y="-11.7"/>
      <bbk:Obs TIME_PERIOD="1982-01" OBS_VALUE="40.809" BBK_DIFF="0.1" BBK_DIFF_Y="-9.7"/>
      <bbk:Obs TIME_PERIOD="1981-12" OBS_VALUE="40.75" BBK_DIFF="0.4" BBK_DIFF_Y="-9.0"/>
      <bbk:Obs TIME_PERIOD="1981-11" OBS_VALUE="40.569" BBK_DIFF="-0.2" BBK_DIFF_Y="-9.1"/>
      <bbk:Obs TIME_PERIOD="1981-10" OBS_VALUE="40.644" BBK_DIFF="-6.7" BBK_DIFF_Y="-7.5"/>
      <bbk:Obs TIME_PERIOD="1981-09" OBS_VALUE="43.566" BBK_DIFF="-7.7" BBK_DIFF_Y="1.1"/>
      <bbk:Obs TIME_PERIOD="1981-08" OBS_VALUE="47.187" BBK_DIFF="0.2" BBK_DIFF_Y="10.0"/>
      <bbk:Obs TIME_PERIOD="1981-07" OBS_VALUE="47.1" BBK_DIFF="0.0" BBK_DIFF_Y="11.2"/>
      <bbk:Obs TIME_PERIOD="1981-06" OBS_VALUE="47.078" BBK_DIFF="0.4" BBK_DIFF_Y="11.0"/>
      <bbk:Obs TIME_PERIOD="1981-05" OBS_VALUE="46.872" BBK_DIFF="1.7" BBK_DIFF_Y="10.2"/>
      <bbk:Obs TIME_PERIOD="1981-04" OBS_VALUE="46.068" BBK_DIFF="0.7" BBK_DIFF_Y="7.4"/>
      <bbk:Obs TIME_PERIOD="1981-03" OBS_VALUE="45.76" BBK_DIFF="-1.7" BBK_DIFF_Y="7.5"/>
      <bbk:Obs TIME_PERIOD="1981-02" OBS_VALUE="46.548" BBK_DIFF="3.0" BBK_DIFF_Y="11.1"/>
      <bbk:Obs TIME_PERIOD="1981-01" OBS_VALUE="45.174" BBK_DIFF="0.9" BBK_DIFF_Y="8.6"/>
      <bbk:Obs TIME_PERIOD="1980-12" OBS_VALUE="44.768" BBK_DIFF="0.3" BBK_DIFF_Y="7.8"/>
      <bbk:Obs TIME_PERIOD="1980-11" OBS_VALUE="44.624" BBK_DIFF="1.6" BBK_DIFF_Y="6.3"/>
      <bbk:Obs TIME_PERIOD="1980-10" OBS_VALUE="43.921" BBK_DIFF="2.0" BBK_DIFF_Y="3.3"/>
      <bbk:Obs TIME_PERIOD="1980-09" OBS_VALUE="43.073" BBK_DIFF="0.5" BBK_DIFF_Y="0.6"/>
      <bbk:Obs TIME_PERIOD="1980-08" OBS_VALUE="42.878" BBK_DIFF="1.2" BBK_DIFF_Y="-1.1"/>
      <bbk:Obs TIME_PERIOD="1980-07" OBS_VALUE="42.349" BBK_DIFF="-0.2" BBK_DIFF_Y="-2.0"/>
      <bbk:Obs TIME_PERIOD="1980-06" OBS_VALUE="42.422" BBK_DIFF="-0.2" BBK_DIFF_Y="-2.3"/>
      <bbk:Obs TIME_PERIOD="1980-05" OBS_VALUE="42.515" BBK_DIFF="-0.9" BBK_DIFF_Y="-2.1"/>
      <bbk:Obs TIME_PERIOD="1980-04" OBS_VALUE="42.893" BBK_DIFF="0.8" BBK_DIFF_Y="-0.6"/>
      <bbk:Obs TIME_PERIOD="1980-03" OBS_VALUE="42.563" BBK_DIFF="1.6" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1980-02" OBS_VALUE="41.905" BBK_DIFF="0.8" BBK_DIFF_Y="-1.5"/>
      <bbk:Obs TIME_PERIOD="1980-01" OBS_VALUE="41.58" BBK_DIFF="0.2" BBK_DIFF_Y="-2.2"/>
      <bbk:Obs TIME_PERIOD="1979-12" OBS_VALUE="41.513" BBK_DIFF="-1.1" BBK_DIFF_Y="-3.3"/>
      <bbk:Obs TIME_PERIOD="1979-11" OBS_VALUE="41.993" BBK_DIFF="-1.2" BBK_DIFF_Y="-3.4"/>
      <bbk:Obs TIME_PERIOD="1979-10" OBS_VALUE="42.503" BBK_DIFF="-0.8" BBK_DIFF_Y="-1.1"/>
      <bbk:Obs TIME_PERIOD="1979-09" OBS_VALUE="42.837" BBK_DIFF="-1.2" BBK_DIFF_Y="-3.9"/>
      <bbk:Obs TIME_PERIOD="1979-08" OBS_VALUE="43.348" BBK_DIFF="0.3" BBK_DIFF_Y="-3.7"/>
      <bbk:Obs TIME_PERIOD="1979-07" OBS_VALUE="43.225" BBK_DIFF="-0.4" BBK_DIFF_Y="-4.5"/>
      <bbk:Obs TIME_PERIOD="1979-06" OBS_VALUE="43.408" BBK_DIFF="0.0" BBK_DIFF_Y="-4.0"/>
      <bbk:Obs TIME_PERIOD="1979-05" OBS_VALUE="43.427" BBK_DIFF="0.6" BBK_DIFF_Y="-4.1"/>
      <bbk:Obs TIME_PERIOD="1979-04" OBS_VALUE="43.148" BBK_DIFF="1.3" BBK_DIFF_Y="-2.8"/>
      <bbk:Obs TIME_PERIOD="1979-03" OBS_VALUE="42.61" BBK_DIFF="0.2" BBK_DIFF_Y="-3.5"/>
      <bbk:Obs TIME_PERIOD="1979-02" OBS_VALUE="42.526" BBK_DIFF="0.0" BBK_DIFF_Y="-4.9"/>
      <bbk:Obs TIME_PERIOD="1979-01" OBS_VALUE="42.528" BBK_DIFF="-1.0" BBK_DIFF_Y="-6.3"/>
      <bbk:Obs TIME_PERIOD="1978-12" OBS_VALUE="42.94" BBK_DIFF="-1.2" BBK_DIFF_Y="-5.3"/>
      <bbk:Obs TIME_PERIOD="1978-11" OBS_VALUE="43.483" BBK_DIFF="1.2" BBK_DIFF_Y="-7.0"/>
      <bbk:Obs TIME_PERIOD="1978-10" OBS_VALUE="42.965" BBK_DIFF="-3.6" BBK_DIFF_Y="-9.5"/>
      <bbk:Obs TIME_PERIOD="1978-09" OBS_VALUE="44.554" BBK_DIFF="-1.0" BBK_DIFF_Y="-7.0"/>
      <bbk:Obs TIME_PERIOD="1978-08" OBS_VALUE="45.005" BBK_DIFF="-0.5" BBK_DIFF_Y="-13.5"/>
      <bbk:Obs TIME_PERIOD="1978-07" OBS_VALUE="45.251" BBK_DIFF="0.0" BBK_DIFF_Y="-13.8"/>
      <bbk:Obs TIME_PERIOD="1978-06" OBS_VALUE="45.23" BBK_DIFF="-0.1" BBK_DIFF_Y="-15.2"/>
      <bbk:Obs TIME_PERIOD="1978-05" OBS_VALUE="45.281" BBK_DIFF="2.0" BBK_DIFF_Y="-16.4"/>
      <bbk:Obs TIME_PERIOD="1978-04" OBS_VALUE="44.373" BBK_DIFF="0.5" BBK_DIFF_Y="-18.8"/>
      <bbk:Obs TIME_PERIOD="1978-03" OBS_VALUE="44.164" BBK_DIFF="-1.3" BBK_DIFF_Y="-22.2"/>
      <bbk:Obs TIME_PERIOD="1978-02" OBS_VALUE="44.738" BBK_DIFF="-1.4" BBK_DIFF_Y="-21.0"/>
      <bbk:Obs TIME_PERIOD="1978-01" OBS_VALUE="45.376" BBK_DIFF="0.1" BBK_DIFF_Y="-20.1"/>
      <bbk:Obs TIME_PERIOD="1977-12" OBS_VALUE="45.323" BBK_DIFF="-3.1" BBK_DIFF_Y="-21.0"/>
      <bbk:Obs TIME_PERIOD="1977-11" OBS_VALUE="46.75" BBK_DIFF="-1.6" BBK_DIFF_Y="-18.3"/>
      <bbk:Obs TIME_PERIOD="1977-10" OBS_VALUE="47.49" BBK_DIFF="-0.8" BBK_DIFF_Y="-16.9"/>
      <bbk:Obs TIME_PERIOD="1977-09" OBS_VALUE="47.885" BBK_DIFF="-8.0" BBK_DIFF_Y="-16.4"/>
      <bbk:Obs TIME_PERIOD="1977-08" OBS_VALUE="52.054" BBK_DIFF="-0.8" BBK_DIFF_Y="-9.2"/>
      <bbk:Obs TIME_PERIOD="1977-07" OBS_VALUE="52.5" BBK_DIFF="-1.5" BBK_DIFF_Y="-8.9"/>
      <bbk:Obs TIME_PERIOD="1977-06" OBS_VALUE="53.309" BBK_DIFF="-1.6" BBK_DIFF_Y="-8.0"/>
      <bbk:Obs TIME_PERIOD="1977-05" OBS_VALUE="54.187" BBK_DIFF="-0.8" BBK_DIFF_Y="-6.7"/>
      <bbk:Obs TIME_PERIOD="1977-04" OBS_VALUE="54.651" BBK_DIFF="-3.7" BBK_DIFF_Y="-5.2"/>
      <bbk:Obs TIME_PERIOD="1977-03" OBS_VALUE="56.76" BBK_DIFF="0.2" BBK_DIFF_Y="-2.4"/>
      <bbk:Obs TIME_PERIOD="1977-02" OBS_VALUE="56.644" BBK_DIFF="-0.3" BBK_DIFF_Y="-3.2"/>
      <bbk:Obs TIME_PERIOD="1977-01" OBS_VALUE="56.786" BBK_DIFF="-1.0" BBK_DIFF_Y="-4.5"/>
      <bbk:Obs TIME_PERIOD="1976-12" OBS_VALUE="57.339" BBK_DIFF="0.2" BBK_DIFF_Y="-3.7"/>
      <bbk:Obs TIME_PERIOD="1976-11" OBS_VALUE="57.204" BBK_DIFF="0.1" BBK_DIFF_Y="-3.1"/>
      <bbk:Obs TIME_PERIOD="1976-10" OBS_VALUE="57.133" BBK_DIFF="-0.3" BBK_DIFF_Y="-2.9"/>
      <bbk:Obs TIME_PERIOD="1976-09" OBS_VALUE="57.29" BBK_DIFF="-0.1" BBK_DIFF_Y="-2.8"/>
      <bbk:Obs TIME_PERIOD="1976-08" OBS_VALUE="57.329" BBK_DIFF="-0.5" BBK_DIFF_Y="-3.9"/>
      <bbk:Obs TIME_PERIOD="1976-07" OBS_VALUE="57.638" BBK_DIFF="-0.5" BBK_DIFF_Y="-3.7"/>
      <bbk:Obs TIME_PERIOD="1976-06" OBS_VALUE="57.922" BBK_DIFF="-0.3" BBK_DIFF_Y="-3.1"/>
      <bbk:Obs TIME_PERIOD="1976-05" OBS_VALUE="58.088" BBK_DIFF="0.8" BBK_DIFF_Y="-2.8"/>
      <bbk:Obs TIME_PERIOD="1976-04" OBS_VALUE="57.634" BBK_DIFF="-0.9" BBK_DIFF_Y="-3.6"/>
      <bbk:Obs TIME_PERIOD="1976-03" OBS_VALUE="58.143" BBK_DIFF="-0.7" BBK_DIFF_Y="-1.6"/>
      <bbk:Obs TIME_PERIOD="1976-02" OBS_VALUE="58.537" BBK_DIFF="-1.6" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1976-01" OBS_VALUE="59.471" BBK_DIFF="-0.1" BBK_DIFF_Y="1.5"/>
      <bbk:Obs TIME_PERIOD="1975-12" OBS_VALUE="59.52" BBK_DIFF="0.9" BBK_DIFF_Y="1.6"/>
      <bbk:Obs TIME_PERIOD="1975-11" OBS_VALUE="59.006" BBK_DIFF="0.3" BBK_DIFF_Y="1.2"/>
      <bbk:Obs TIME_PERIOD="1975-10" OBS_VALUE="58.81" BBK_DIFF="-0.2" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1975-09" OBS_VALUE="58.926" BBK_DIFF="-1.3" BBK_DIFF_Y="-0.9"/>
      <bbk:Obs TIME_PERIOD="1975-08" OBS_VALUE="59.68" BBK_DIFF="-0.3" BBK_DIFF_Y="0.8"/>
      <bbk:Obs TIME_PERIOD="1975-07" OBS_VALUE="59.85" BBK_DIFF="0.1" BBK_DIFF_Y="2.4"/>
      <bbk:Obs TIME_PERIOD="1975-06" OBS_VALUE="59.798" BBK_DIFF="0.1" BBK_DIFF_Y="3.4"/>
      <bbk:Obs TIME_PERIOD="1975-05" OBS_VALUE="59.762" BBK_DIFF="-0.1" BBK_DIFF_Y="3.8"/>
      <bbk:Obs TIME_PERIOD="1975-04" OBS_VALUE="59.798" BBK_DIFF="1.2" BBK_DIFF_Y="4.2"/>
      <bbk:Obs TIME_PERIOD="1975-03" OBS_VALUE="59.113" BBK_DIFF="0.9" BBK_DIFF_Y="3.0"/>
      <bbk:Obs TIME_PERIOD="1975-02" OBS_VALUE="58.572" BBK_DIFF="0.0" BBK_DIFF_Y="0.9"/>
      <bbk:Obs TIME_PERIOD="1975-01" OBS_VALUE="58.597" BBK_DIFF="0.0" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1974-12" OBS_VALUE="58.604" BBK_DIFF="0.6" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1974-11" OBS_VALUE="58.279" BBK_DIFF="-1.3" BBK_DIFF_Y="-2.0"/>
      <bbk:Obs TIME_PERIOD="1974-10" OBS_VALUE="59.048" BBK_DIFF="-0.7" BBK_DIFF_Y="2.1"/>
      <bbk:Obs TIME_PERIOD="1974-09" OBS_VALUE="59.489" BBK_DIFF="0.5" BBK_DIFF_Y="3.1"/>
      <bbk:Obs TIME_PERIOD="1974-08" OBS_VALUE="59.218" BBK_DIFF="1.4" BBK_DIFF_Y="1.3"/>
      <bbk:Obs TIME_PERIOD="1974-07" OBS_VALUE="58.428" BBK_DIFF="1.0" BBK_DIFF_Y="1.0"/>
      <bbk:Obs TIME_PERIOD="1974-06" OBS_VALUE="57.845" BBK_DIFF="0.5" BBK_DIFF_Y="-5.7"/>
      <bbk:Obs TIME_PERIOD="1974-05" OBS_VALUE="57.55" BBK_DIFF="0.2" BBK_DIFF_Y="-8.6"/>
      <bbk:Obs TIME_PERIOD="1974-04" OBS_VALUE="57.414" BBK_DIFF="0.0" BBK_DIFF_Y="-8.7"/>
      <bbk:Obs TIME_PERIOD="1974-03" OBS_VALUE="57.395" BBK_DIFF="-1.1" BBK_DIFF_Y="-9.1"/>
      <bbk:Obs TIME_PERIOD="1974-02" OBS_VALUE="58.03" BBK_DIFF="-1.1" BBK_DIFF_Y="-11.9"/>
      <bbk:Obs TIME_PERIOD="1974-01" OBS_VALUE="58.663" BBK_DIFF="0.1" BBK_DIFF_Y="-13.0"/>
      <bbk:Obs TIME_PERIOD="1973-12" OBS_VALUE="58.614" BBK_DIFF="-1.4" BBK_DIFF_Y="-13.1"/>
      <bbk:Obs TIME_PERIOD="1973-11" OBS_VALUE="59.46" BBK_DIFF="2.8" BBK_DIFF_Y="-12.0"/>
      <bbk:Obs TIME_PERIOD="1973-10" OBS_VALUE="57.823" BBK_DIFF="0.2" BBK_DIFF_Y="-14.5"/>
      <bbk:Obs TIME_PERIOD="1973-09" OBS_VALUE="57.714" BBK_DIFF="-1.2" BBK_DIFF_Y="-14.5"/>
      <bbk:Obs TIME_PERIOD="1973-08" OBS_VALUE="58.444" BBK_DIFF="1.0" BBK_DIFF_Y="-13.3"/>
      <bbk:Obs TIME_PERIOD="1973-07" OBS_VALUE="57.873" BBK_DIFF="-5.7" BBK_DIFF_Y="-13.4"/>
      <bbk:Obs TIME_PERIOD="1973-06" OBS_VALUE="61.344" BBK_DIFF="-2.6" BBK_DIFF_Y="-8.4"/>
      <bbk:Obs TIME_PERIOD="1973-05" OBS_VALUE="62.986" BBK_DIFF="0.2" BBK_DIFF_Y="-5.9"/>
      <bbk:Obs TIME_PERIOD="1973-04" OBS_VALUE="62.872" BBK_DIFF="-0.4" BBK_DIFF_Y="-5.4"/>
      <bbk:Obs TIME_PERIOD="1973-03" OBS_VALUE="63.122" BBK_DIFF="-4.2" BBK_DIFF_Y="-5.0"/>
      <bbk:Obs TIME_PERIOD="1973-02" OBS_VALUE="65.889" BBK_DIFF="-2.3" BBK_DIFF_Y="-0.9"/>
      <bbk:Obs TIME_PERIOD="1973-01" OBS_VALUE="67.443" BBK_DIFF="0.0" BBK_DIFF_Y="0.6"/>
      <bbk:Obs TIME_PERIOD="1972-12" OBS_VALUE="67.425" BBK_DIFF="-0.2" BBK_DIFF_Y="0.9"/>
      <bbk:Obs TIME_PERIOD="1972-11" OBS_VALUE="67.535" BBK_DIFF="-0.1" BBK_DIFF_Y="1.4"/>
      <bbk:Obs TIME_PERIOD="1972-10" OBS_VALUE="67.596" BBK_DIFF="0.1" BBK_DIFF_Y="2.0"/>
      <bbk:Obs TIME_PERIOD="1972-09" OBS_VALUE="67.508" BBK_DIFF="0.1" BBK_DIFF_Y="1.8"/>
      <bbk:Obs TIME_PERIOD="1972-08" OBS_VALUE="67.426" BBK_DIFF="0.9" BBK_DIFF_Y="1.1"/>
      <bbk:Obs TIME_PERIOD="1972-07" OBS_VALUE="66.809" BBK_DIFF="-0.2" BBK_DIFF_Y="-1.0"/>
      <bbk:Obs TIME_PERIOD="1972-06" OBS_VALUE="66.973" BBK_DIFF="0.1" BBK_DIFF_Y="-1.6"/>
      <bbk:Obs TIME_PERIOD="1972-05" OBS_VALUE="66.908" BBK_DIFF="0.7" BBK_DIFF_Y="-2.7"/>
      <bbk:Obs TIME_PERIOD="1972-04" OBS_VALUE="66.456" BBK_DIFF="0.0" BBK_DIFF_Y="-5.6"/>
      <bbk:Obs TIME_PERIOD="1972-03" OBS_VALUE="66.451" BBK_DIFF="-0.1" BBK_DIFF_Y="-5.5"/>
      <bbk:Obs TIME_PERIOD="1972-02" OBS_VALUE="66.49" BBK_DIFF="-0.8" BBK_DIFF_Y="-5.3"/>
      <bbk:Obs TIME_PERIOD="1972-01" OBS_VALUE="67.013" BBK_DIFF="0.2" BBK_DIFF_Y="-4.9"/>
      <bbk:Obs TIME_PERIOD="1971-12" OBS_VALUE="66.847" BBK_DIFF="0.3" BBK_DIFF_Y="-5.2"/>
      <bbk:Obs TIME_PERIOD="1971-11" OBS_VALUE="66.616" BBK_DIFF="0.5" BBK_DIFF_Y="-5.1"/>
      <bbk:Obs TIME_PERIOD="1971-10" OBS_VALUE="66.253" BBK_DIFF="-0.1" BBK_DIFF_Y="-5.4"/>
      <bbk:Obs TIME_PERIOD="1971-09" OBS_VALUE="66.331" BBK_DIFF="-0.5" BBK_DIFF_Y="-5.0"/>
      <bbk:Obs TIME_PERIOD="1971-08" OBS_VALUE="66.694" BBK_DIFF="-1.1" BBK_DIFF_Y="-4.9"/>
      <bbk:Obs TIME_PERIOD="1971-07" OBS_VALUE="67.461" BBK_DIFF="-0.9" BBK_DIFF_Y="-3.7"/>
      <bbk:Obs TIME_PERIOD="1971-06" OBS_VALUE="68.066" BBK_DIFF="-1.0" BBK_DIFF_Y="-2.8"/>
      <bbk:Obs TIME_PERIOD="1971-05" OBS_VALUE="68.757" BBK_DIFF="-2.3" BBK_DIFF_Y="-1.6"/>
      <bbk:Obs TIME_PERIOD="1971-04" OBS_VALUE="70.408" BBK_DIFF="0.1" BBK_DIFF_Y="0.5"/>
      <bbk:Obs TIME_PERIOD="1971-03" OBS_VALUE="70.352" BBK_DIFF="0.2" BBK_DIFF_Y="-0.5"/>
      <bbk:Obs TIME_PERIOD="1971-02" OBS_VALUE="70.207" BBK_DIFF="-0.3" BBK_DIFF_Y="-1.4"/>
      <bbk:Obs TIME_PERIOD="1971-01" OBS_VALUE="70.446" BBK_DIFF="-0.1" BBK_DIFF_Y="-1.3"/>
      <bbk:Obs TIME_PERIOD="1970-12" OBS_VALUE="70.502" BBK_DIFF="0.5" BBK_DIFF_Y="-1.2"/>
      <bbk:Obs TIME_PERIOD="1970-11" OBS_VALUE="70.167" BBK_DIFF="0.2" BBK_DIFF_Y="-1.8"/>
      <bbk:Obs TIME_PERIOD="1970-10" OBS_VALUE="70.057" BBK_DIFF="0.3" BBK_DIFF_Y="-3.0"/>
      <bbk:Obs TIME_PERIOD="1970-09" OBS_VALUE="69.826" BBK_DIFF="-0.4" BBK_DIFF_Y="-9.0"/>
      <bbk:Obs TIME_PERIOD="1970-08" OBS_VALUE="70.117" BBK_DIFF="0.1" BBK_DIFF_Y="-9.1"/>
      <bbk:Obs TIME_PERIOD="1970-07" OBS_VALUE="70.033" BBK_DIFF="0.0" BBK_DIFF_Y="-9.5"/>
      <bbk:Obs TIME_PERIOD="1970-06" OBS_VALUE="70.005" BBK_DIFF="0.2" BBK_DIFF_Y="-9.5"/>
      <bbk:Obs TIME_PERIOD="1970-05" OBS_VALUE="69.89" BBK_DIFF="-0.2" BBK_DIFF_Y="-9.4"/>
      <bbk:Obs TIME_PERIOD="1970-04" OBS_VALUE="70.065" BBK_DIFF="-0.9" BBK_DIFF_Y="-9.7"/>
      <bbk:Obs TIME_PERIOD="1970-03" OBS_VALUE="70.672" BBK_DIFF="-0.8" BBK_DIFF_Y="-9.1"/>
      <bbk:Obs TIME_PERIOD="1970-02" OBS_VALUE="71.23" BBK_DIFF="-0.2" BBK_DIFF_Y="-8.3"/>
      <bbk:Obs TIME_PERIOD="1970-01" OBS_VALUE="71.362" BBK_DIFF="0.0" BBK_DIFF_Y="-7.8"/>
      <bbk:Obs TIME_PERIOD="1969-12" OBS_VALUE="71.333" BBK_DIFF="-0.1" BBK_DIFF_Y="-7.6"/>
      <bbk:Obs TIME_PERIOD="1969-11" OBS_VALUE="71.425" BBK_DIFF="-1.2" BBK_DIFF_Y="-7.1"/>
      <bbk:Obs TIME_PERIOD="1969-10" OBS_VALUE="72.257" BBK_DIFF="-5.8" BBK_DIFF_Y="-6.1"/>
      <bbk:Obs TIME_PERIOD="1969-09" OBS_VALUE="76.69" BBK_DIFF="-0.6" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1969-08" OBS_VALUE="77.142" BBK_DIFF="-0.3" BBK_DIFF_Y="-0.8"/>
      <bbk:Obs TIME_PERIOD="1969-07" OBS_VALUE="77.345" BBK_DIFF="0.0" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1969-06" OBS_VALUE="77.348" BBK_DIFF="0.3" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1969-05" OBS_VALUE="77.129" BBK_DIFF="-0.6" BBK_DIFF_Y="0.1"/>
      <bbk:Obs TIME_PERIOD="1969-04" OBS_VALUE="77.626" BBK_DIFF="-0.1" BBK_DIFF_Y="0.7"/>
      <bbk:Obs TIME_PERIOD="1969-03" OBS_VALUE="77.741" BBK_DIFF="0.1" BBK_DIFF_Y="0.7"/>
      <bbk:Obs TIME_PERIOD="1969-02" OBS_VALUE="77.665" BBK_DIFF="0.3" BBK_DIFF_Y="0.2"/>
      <bbk:Obs TIME_PERIOD="1969-01" OBS_VALUE="77.439" BBK_DIFF="0.3" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1968-12" OBS_VALUE="77.199" BBK_DIFF="0.5" BBK_DIFF_Y="0.1"/>
      <bbk:Obs TIME_PERIOD="1968-11" OBS_VALUE="76.851" BBK_DIFF="-0.2" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1968-10" OBS_VALUE="76.985" BBK_DIFF="0.0" BBK_DIFF_Y="-0.6"/>
      <bbk:Obs TIME_PERIOD="1968-09" OBS_VALUE="76.987" BBK_DIFF="-1.0" BBK_DIFF_Y="-0.7"/>
      <bbk:Obs TIME_PERIOD="1968-08" OBS_VALUE="77.749" BBK_DIFF="0.2" BBK_DIFF_Y="0.2"/>
      <bbk:Obs TIME_PERIOD="1968-07" OBS_VALUE="77.559" BBK_DIFF="0.3" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1968-06" OBS_VALUE="77.333" BBK_DIFF="0.4" BBK_DIFF_Y="0.1"/>
      <bbk:Obs TIME_PERIOD="1968-05" OBS_VALUE="77.052" BBK_DIFF="0.0" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1968-04" OBS_VALUE="77.075" BBK_DIFF="-0.2" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1968-03" OBS_VALUE="77.193" BBK_DIFF="-0.4" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1968-02" OBS_VALUE="77.493" BBK_DIFF="-0.1" BBK_DIFF_Y="0.8"/>
      <bbk:Obs TIME_PERIOD="1968-01" OBS_VALUE="77.549" BBK_DIFF="0.6" BBK_DIFF_Y="0.8"/>
      <bbk:Obs TIME_PERIOD="1967-12" OBS_VALUE="77.098" BBK_DIFF="0.0" BBK_DIFF_Y="0.4"/>
      <bbk:Obs TIME_PERIOD="1967-11" OBS_VALUE="77.085" BBK_DIFF="-0.5" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1967-10" OBS_VALUE="77.449" BBK_DIFF="-0.1" BBK_DIFF_Y="0.6"/>
      <bbk:Obs TIME_PERIOD="1967-09" OBS_VALUE="77.56" BBK_DIFF="-0.1" BBK_DIFF_Y="0.5"/>
      <bbk:Obs TIME_PERIOD="1967-08" OBS_VALUE="77.622" BBK_DIFF="0.0" BBK_DIFF_Y="0.5"/>
      <bbk:Obs TIME_PERIOD="1967-07" OBS_VALUE="77.65" BBK_DIFF="0.5" BBK_DIFF_Y="0.5"/>
      <bbk:Obs TIME_PERIOD="1967-06" OBS_VALUE="77.279" BBK_DIFF="0.2" BBK_DIFF_Y="-0.5"/>
      <bbk:Obs TIME_PERIOD="1967-05" OBS_VALUE="77.153" BBK_DIFF="0.1" BBK_DIFF_Y="-1.0"/>
      <bbk:Obs TIME_PERIOD="1967-04" OBS_VALUE="77.082" BBK_DIFF="0.2" BBK_DIFF_Y="-1.0"/>
      <bbk:Obs TIME_PERIOD="1967-03" OBS_VALUE="76.965" BBK_DIFF="0.1" BBK_DIFF_Y="-1.1"/>
      <bbk:Obs TIME_PERIOD="1967-02" OBS_VALUE="76.899" BBK_DIFF="0.0" BBK_DIFF_Y="-1.0"/>
      <bbk:Obs TIME_PERIOD="1967-01" OBS_VALUE="76.921" BBK_DIFF="0.2" BBK_DIFF_Y="-0.9"/>
      <bbk:Obs TIME_PERIOD="1966-12" OBS_VALUE="76.801" BBK_DIFF="-0.1" BBK_DIFF_Y="-0.7"/>
      <bbk:Obs TIME_PERIOD="1966-11" OBS_VALUE="76.888" BBK_DIFF="-0.1" BBK_DIFF_Y="-0.6"/>
      <bbk:Obs TIME_PERIOD="1966-10" OBS_VALUE="77.0" BBK_DIFF="-0.2" BBK_DIFF_Y="-0.6"/>
      <bbk:Obs TIME_PERIOD="1966-09" OBS_VALUE="77.166" BBK_DIFF="-0.1" BBK_DIFF_Y="-0.6"/>
      <bbk:Obs TIME_PERIOD="1966-08" OBS_VALUE="77.265" BBK_DIFF="0.0" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1966-07" OBS_VALUE="77.27" BBK_DIFF="-0.5" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1966-06" OBS_VALUE="77.659" BBK_DIFF="-0.3" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1966-05" OBS_VALUE="77.93" BBK_DIFF="0.1" BBK_DIFF_Y="0.8"/>
      <bbk:Obs TIME_PERIOD="1966-04" OBS_VALUE="77.847" BBK_DIFF="0.1" BBK_DIFF_Y="0.7"/>
      <bbk:Obs TIME_PERIOD="1966-03" OBS_VALUE="77.808" BBK_DIFF="0.2" BBK_DIFF_Y="0.5"/>
      <bbk:Obs TIME_PERIOD="1966-02" OBS_VALUE="77.68" BBK_DIFF="0.1" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1966-01" OBS_VALUE="77.59" BBK_DIFF="0.3" BBK_DIFF_Y="0.2"/>
      <bbk:Obs TIME_PERIOD="1965-12" OBS_VALUE="77.337" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1965-11" OBS_VALUE="77.334" BBK_DIFF="-0.1" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1965-10" OBS_VALUE="77.435" BBK_DIFF="-0.2" BBK_DIFF_Y="0.5"/>
      <bbk:Obs TIME_PERIOD="1965-09" OBS_VALUE="77.624" BBK_DIFF="0.1" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1965-08" OBS_VALUE="77.578" BBK_DIFF="0.0" BBK_DIFF_Y="0.2"/>
      <bbk:Obs TIME_PERIOD="1965-07" OBS_VALUE="77.542" BBK_DIFF="0.1" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1965-06" OBS_VALUE="77.46" BBK_DIFF="0.1" BBK_DIFF_Y="0.1"/>
      <bbk:Obs TIME_PERIOD="1965-05" OBS_VALUE="77.344" BBK_DIFF="0.1" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1965-04" OBS_VALUE="77.288" BBK_DIFF="-0.2" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1965-03" OBS_VALUE="77.436" BBK_DIFF="0.0" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1965-02" OBS_VALUE="77.461" BBK_DIFF="0.0" BBK_DIFF_Y="1.1"/>
      <bbk:Obs TIME_PERIOD="1965-01" OBS_VALUE="77.444" BBK_DIFF="0.2" BBK_DIFF_Y="1.1"/>
      <bbk:Obs TIME_PERIOD="1964-12" OBS_VALUE="77.304" BBK_DIFF="0.2" BBK_DIFF_Y="1.0"/>
      <bbk:Obs TIME_PERIOD="1964-11" OBS_VALUE="77.128" BBK_DIFF="0.1" BBK_DIFF_Y="0.7"/>
      <bbk:Obs TIME_PERIOD="1964-10" OBS_VALUE="77.029" BBK_DIFF="-0.5" BBK_DIFF_Y="0.6"/>
      <bbk:Obs TIME_PERIOD="1964-09" OBS_VALUE="77.378" BBK_DIFF="0.0" BBK_DIFF_Y="0.9"/>
      <bbk:Obs TIME_PERIOD="1964-08" OBS_VALUE="77.397" BBK_DIFF="0.1" BBK_DIFF_Y="0.8"/>
      <bbk:Obs TIME_PERIOD="1964-07" OBS_VALUE="77.282" BBK_DIFF="-0.1" BBK_DIFF_Y="0.5"/>
      <bbk:Obs TIME_PERIOD="1964-06" OBS_VALUE="77.363" BBK_DIFF="0.0" BBK_DIFF_Y="0.8"/>
      <bbk:Obs TIME_PERIOD="1964-05" OBS_VALUE="77.37" BBK_DIFF="0.1" BBK_DIFF_Y="0.8"/>
      <bbk:Obs TIME_PERIOD="1964-04" OBS_VALUE="77.315" BBK_DIFF="0.1" BBK_DIFF_Y="0.6"/>
      <bbk:Obs TIME_PERIOD="1964-03" OBS_VALUE="77.213" BBK_DIFF="0.7" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1964-02" OBS_VALUE="76.646" BBK_DIFF="0.0" BBK_DIFF_Y="-0.7"/>
      <bbk:Obs TIME_PERIOD="1964-01" OBS_VALUE="76.637" BBK_DIFF="0.2" BBK_DIFF_Y="-0.9"/>
      <bbk:Obs TIME_PERIOD="1963-12" OBS_VALUE="76.503" BBK_DIFF="-0.1" BBK_DIFF_Y="-0.7"/>
      <bbk:Obs TIME_PERIOD="1963-11" OBS_VALUE="76.576" BBK_DIFF="0.0" BBK_DIFF_Y="-1.3"/>
      <bbk:Obs TIME_PERIOD="1963-10" OBS_VALUE="76.589" BBK_DIFF="-0.2" BBK_DIFF_Y="-1.5"/>
      <bbk:Obs TIME_PERIOD="1963-09" OBS_VALUE="76.705" BBK_DIFF="-0.1" BBK_DIFF_Y="-1.2"/>
      <bbk:Obs TIME_PERIOD="1963-08" OBS_VALUE="76.761" BBK_DIFF="-0.2" BBK_DIFF_Y="-1.2"/>
      <bbk:Obs TIME_PERIOD="1963-07" OBS_VALUE="76.877" BBK_DIFF="0.1" BBK_DIFF_Y="-0.8"/>
      <bbk:Obs TIME_PERIOD="1963-06" OBS_VALUE="76.776" BBK_DIFF="0.0" BBK_DIFF_Y="-1.1"/>
      <bbk:Obs TIME_PERIOD="1963-05" OBS_VALUE="76.791" BBK_DIFF="-0.1" BBK_DIFF_Y="-1.2"/>
      <bbk:Obs TIME_PERIOD="1963-04" OBS_VALUE="76.872" BBK_DIFF="-0.2" BBK_DIFF_Y="-1.0"/>
      <bbk:Obs TIME_PERIOD="1963-03" OBS_VALUE="76.997" BBK_DIFF="-0.3" BBK_DIFF_Y="-0.8"/>
      <bbk:Obs TIME_PERIOD="1963-02" OBS_VALUE="77.212" BBK_DIFF="-0.2" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1963-01" OBS_VALUE="77.363" BBK_DIFF="0.4" BBK_DIFF_Y="0.1"/>
      <bbk:Obs TIME_PERIOD="1962-12" OBS_VALUE="77.039" BBK_DIFF="-0.8" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1962-11" OBS_VALUE="77.623" BBK_DIFF="-0.2" BBK_DIFF_Y="0.2"/>
      <bbk:Obs TIME_PERIOD="1962-10" OBS_VALUE="77.757" BBK_DIFF="0.1" BBK_DIFF_Y="0.5"/>
      <bbk:Obs TIME_PERIOD="1962-09" OBS_VALUE="77.66" BBK_DIFF="0.0" BBK_DIFF_Y="0.5"/>
      <bbk:Obs TIME_PERIOD="1962-08" OBS_VALUE="77.672" BBK_DIFF="0.3" BBK_DIFF_Y="0.4"/>
      <bbk:Obs TIME_PERIOD="1962-07" OBS_VALUE="77.466" BBK_DIFF="-0.2" BBK_DIFF_Y="0.6"/>
      <bbk:Obs TIME_PERIOD="1962-06" OBS_VALUE="77.629" BBK_DIFF="-0.1" BBK_DIFF_Y="0.9"/>
      <bbk:Obs TIME_PERIOD="1962-05" OBS_VALUE="77.693" BBK_DIFF="0.0" BBK_DIFF_Y="1.0"/>
      <bbk:Obs TIME_PERIOD="1962-04" OBS_VALUE="77.679" BBK_DIFF="0.1" BBK_DIFF_Y="1.1"/>
      <bbk:Obs TIME_PERIOD="1962-03" OBS_VALUE="77.6" BBK_DIFF="0.1" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1962-02" OBS_VALUE="77.527" BBK_DIFF="0.3" BBK_DIFF_Y="-3.9"/>
      <bbk:Obs TIME_PERIOD="1962-01" OBS_VALUE="77.302" BBK_DIFF="-0.1" BBK_DIFF_Y="-4.2"/>
      <bbk:Obs TIME_PERIOD="1961-12" OBS_VALUE="77.375" BBK_DIFF="-0.1" BBK_DIFF_Y="-4.1"/>
      <bbk:Obs TIME_PERIOD="1961-11" OBS_VALUE="77.43" BBK_DIFF="0.1" BBK_DIFF_Y="-4.1"/>
      <bbk:Obs TIME_PERIOD="1961-10" OBS_VALUE="77.373" BBK_DIFF="0.2" BBK_DIFF_Y="-4.2"/>
      <bbk:Obs TIME_PERIOD="1961-09" OBS_VALUE="77.252" BBK_DIFF="-0.1" BBK_DIFF_Y="-4.4"/>
      <bbk:Obs TIME_PERIOD="1961-08" OBS_VALUE="77.333" BBK_DIFF="0.4" BBK_DIFF_Y="-4.4"/>
      <bbk:Obs TIME_PERIOD="1961-07" OBS_VALUE="77.038" BBK_DIFF="0.1" BBK_DIFF_Y="-4.6"/>
      <bbk:Obs TIME_PERIOD="1961-06" OBS_VALUE="76.948" BBK_DIFF="0.0" BBK_DIFF_Y="-4.7"/>
      <bbk:Obs TIME_PERIOD="1961-05" OBS_VALUE="76.953" BBK_DIFF="0.1" BBK_DIFF_Y="-4.6"/>
      <bbk:Obs TIME_PERIOD="1961-04" OBS_VALUE="76.848" BBK_DIFF="-0.7" BBK_DIFF_Y="-4.8"/>
      <bbk:Obs TIME_PERIOD="1961-03" OBS_VALUE="77.355" BBK_DIFF="-4.2" BBK_DIFF_Y="-4.0"/>
      <bbk:Obs TIME_PERIOD="1961-02" OBS_VALUE="80.713" BBK_DIFF="0.0" BBK_DIFF_Y="0.2"/>
      <bbk:Obs TIME_PERIOD="1961-01" OBS_VALUE="80.697" BBK_DIFF="0.1" BBK_DIFF_Y="0.2"/>
      <bbk:Obs TIME_PERIOD="1960-12" OBS_VALUE="80.65" BBK_DIFF="-0.1" BBK_DIFF_Y="0.2"/>
      <bbk:Obs TIME_PERIOD="1960-11" OBS_VALUE="80.758" BBK_DIFF="-0.1" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1960-10" OBS_VALUE="80.805" BBK_DIFF="0.0" BBK_DIFF_Y="0.1"/>
      <bbk:Obs TIME_PERIOD="1960-09" OBS_VALUE="80.827" BBK_DIFF="-0.1" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1960-08" OBS_VALUE="80.883" BBK_DIFF="0.1" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1960-07" OBS_VALUE="80.779" BBK_DIFF="0.0" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1960-06" OBS_VALUE="80.778" BBK_DIFF="0.1" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1960-05" OBS_VALUE="80.665" BBK_DIFF="-0.1" BBK_DIFF_Y="-0.2"/>
      <bbk:Obs TIME_PERIOD="1960-04" OBS_VALUE="80.74" BBK_DIFF="0.2" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1960-03" OBS_VALUE="80.555" BBK_DIFF="0.0" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1960-02" OBS_VALUE="80.551" BBK_DIFF="0.1" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1960-01" OBS_VALUE="80.51" BBK_DIFF="0.0" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1959-12" OBS_VALUE="80.529" BBK_DIFF="0.0" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1959-11" OBS_VALUE="80.552" BBK_DIFF="-0.2" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1959-10" OBS_VALUE="80.753" BBK_DIFF="-0.1" BBK_DIFF_Y="0.1"/>
      <bbk:Obs TIME_PERIOD="1959-09" OBS_VALUE="80.862" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1959-08" OBS_VALUE="80.869" BBK_DIFF="0.0" BBK_DIFF_Y="-0.2"/>
      <bbk:Obs TIME_PERIOD="1959-07" OBS_VALUE="80.829" BBK_DIFF="0.1" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1959-06" OBS_VALUE="80.766" BBK_DIFF="-0.1" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1959-05" OBS_VALUE="80.829" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1959-04" OBS_VALUE="80.845" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1959-03" OBS_VALUE="80.833" BBK_DIFF="0.1" BBK_DIFF_Y="-0.2"/>
      <bbk:Obs TIME_PERIOD="1959-02" OBS_VALUE="80.792" BBK_DIFF="0.0" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1959-01" OBS_VALUE="80.764" BBK_DIFF="0.0" BBK_DIFF_Y="-0.5"/>
      <bbk:Obs TIME_PERIOD="1958-12" OBS_VALUE="80.766" BBK_DIFF="0.0" BBK_DIFF_Y="-0.6"/>
      <bbk:Obs TIME_PERIOD="1958-11" OBS_VALUE="80.789" BBK_DIFF="0.1" BBK_DIFF_Y="-0.5"/>
      <bbk:Obs TIME_PERIOD="1958-10" OBS_VALUE="80.685" BBK_DIFF="-0.2" BBK_DIFF_Y="-0.6"/>
      <bbk:Obs TIME_PERIOD="1958-09" OBS_VALUE="80.822" BBK_DIFF="-0.2" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1958-08" OBS_VALUE="81.022" BBK_DIFF="0.1" BBK_DIFF_Y="0.2"/>
      <bbk:Obs TIME_PERIOD="1958-07" OBS_VALUE="80.91" BBK_DIFF="0.1" BBK_DIFF_Y="0.1"/>
      <bbk:Obs TIME_PERIOD="1958-06" OBS_VALUE="80.86" BBK_DIFF="0.0" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1958-05" OBS_VALUE="80.831" BBK_DIFF="0.0" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1958-04" OBS_VALUE="80.87" BBK_DIFF="-0.1" BBK_DIFF_Y="-0.2"/>
      <bbk:Obs TIME_PERIOD="1958-03" OBS_VALUE="80.968" BBK_DIFF="-0.1" BBK_DIFF_Y="-0.2"/>
      <bbk:Obs TIME_PERIOD="1958-02" OBS_VALUE="81.082" BBK_DIFF="-0.2" BBK_DIFF_Y="0.1"/>
      <bbk:Obs TIME_PERIOD="1958-01" OBS_VALUE="81.206" BBK_DIFF="0.0" BBK_DIFF_Y="0.2"/>
      <bbk:Obs TIME_PERIOD="1957-12" OBS_VALUE="81.227" BBK_DIFF="0.0" BBK_DIFF_Y="0.2"/>
      <bbk:Obs TIME_PERIOD="1957-11" OBS_VALUE="81.21" BBK_DIFF="0.0" BBK_DIFF_Y="0.1"/>
      <bbk:Obs TIME_PERIOD="1957-10" OBS_VALUE="81.204" BBK_DIFF="0.4" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1957-09" OBS_VALUE="80.862" BBK_DIFF="0.0" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1957-08" OBS_VALUE="80.882" BBK_DIFF="0.1" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1957-07" OBS_VALUE="80.837" BBK_DIFF="-0.3" BBK_DIFF_Y="-0.2"/>
      <bbk:Obs TIME_PERIOD="1957-06" OBS_VALUE="81.094" BBK_DIFF="-0.1" BBK_DIFF_Y="0.5"/>
      <bbk:Obs TIME_PERIOD="1957-05" OBS_VALUE="81.168" BBK_DIFF="0.1" BBK_DIFF_Y="0.7"/>
      <bbk:Obs TIME_PERIOD="1957-04" OBS_VALUE="81.052" BBK_DIFF="-0.1" BBK_DIFF_Y="0.5"/>
      <bbk:Obs TIME_PERIOD="1957-03" OBS_VALUE="81.127" BBK_DIFF="0.1" BBK_DIFF_Y="0.6"/>
      <bbk:Obs TIME_PERIOD="1957-02" OBS_VALUE="81.035" BBK_DIFF="0.0" BBK_DIFF_Y="0.4"/>
      <bbk:Obs TIME_PERIOD="1957-01" OBS_VALUE="81.008" BBK_DIFF="-0.1" BBK_DIFF_Y="0.4"/>
      <bbk:Obs TIME_PERIOD="1956-12" OBS_VALUE="81.063" BBK_DIFF="-0.1" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1956-11" OBS_VALUE="81.169" BBK_DIFF="0.3" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1956-10" OBS_VALUE="80.924" BBK_DIFF="-0.3" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1956-09" OBS_VALUE="81.148" BBK_DIFF="0.0" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1956-08" OBS_VALUE="81.132" BBK_DIFF="0.2" BBK_DIFF_Y="-0.2"/>
      <bbk:Obs TIME_PERIOD="1956-07" OBS_VALUE="80.962" BBK_DIFF="0.3" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1956-06" OBS_VALUE="80.698" BBK_DIFF="0.1" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1956-05" OBS_VALUE="80.643" BBK_DIFF="0.0" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1956-04" OBS_VALUE="80.678" BBK_DIFF="0.0" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1956-03" OBS_VALUE="80.66" BBK_DIFF="0.0" BBK_DIFF_Y="-0.6"/>
      <bbk:Obs TIME_PERIOD="1956-02" OBS_VALUE="80.685" BBK_DIFF="0.0" BBK_DIFF_Y="-0.5"/>
      <bbk:Obs TIME_PERIOD="1956-01" OBS_VALUE="80.7" BBK_DIFF="-0.2" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1955-12" OBS_VALUE="80.836" BBK_DIFF="-0.2" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1955-11" OBS_VALUE="80.963" BBK_DIFF="-0.3" BBK_DIFF_Y="0.1"/>
      <bbk:Obs TIME_PERIOD="1955-10" OBS_VALUE="81.231" BBK_DIFF="0.0" BBK_DIFF_Y="0.4"/>
      <bbk:Obs TIME_PERIOD="1955-09" OBS_VALUE="81.2" BBK_DIFF="-0.1" BBK_DIFF_Y="0.3"/>
      <bbk:Obs TIME_PERIOD="1955-08" OBS_VALUE="81.297" BBK_DIFF="0.3" BBK_DIFF_Y="0.7"/>
      <bbk:Obs TIME_PERIOD="1955-07" OBS_VALUE="81.08" BBK_DIFF="0.1" BBK_DIFF_Y="0.4"/>
      <bbk:Obs TIME_PERIOD="1955-06" OBS_VALUE="81.01" BBK_DIFF="0.1" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1955-05" OBS_VALUE="80.935" BBK_DIFF="-0.1" BBK_DIFF_Y="0.2"/>
      <bbk:Obs TIME_PERIOD="1955-04" OBS_VALUE="81.028" BBK_DIFF="-0.1" BBK_DIFF_Y="0.5"/>
      <bbk:Obs TIME_PERIOD="1955-03" OBS_VALUE="81.109" BBK_DIFF="0.0" BBK_DIFF_Y="0.6"/>
      <bbk:Obs TIME_PERIOD="1955-02" OBS_VALUE="81.077" BBK_DIFF="0.1" BBK_DIFF_Y="0.6"/>
      <bbk:Obs TIME_PERIOD="1955-01" OBS_VALUE="80.982" BBK_DIFF="0.1" BBK_DIFF_Y="0.4"/>
      <bbk:Obs TIME_PERIOD="1954-12" OBS_VALUE="80.933" BBK_DIFF="0.1" BBK_DIFF_Y="0.2"/>
      <bbk:Obs TIME_PERIOD="1954-11" OBS_VALUE="80.85" BBK_DIFF="0.0" BBK_DIFF_Y="-0.2"/>
      <bbk:Obs TIME_PERIOD="1954-10" OBS_VALUE="80.889" BBK_DIFF="0.0" BBK_DIFF_Y="-0.2"/>
      <bbk:Obs TIME_PERIOD="1954-09" OBS_VALUE="80.928" BBK_DIFF="0.2" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1954-08" OBS_VALUE="80.758" BBK_DIFF="0.0" BBK_DIFF_Y="-0.1"/>
      <bbk:Obs TIME_PERIOD="1954-07" OBS_VALUE="80.727" BBK_DIFF="-0.3" BBK_DIFF_Y="0.1"/>
      <bbk:Obs TIME_PERIOD="1954-06" OBS_VALUE="80.982" BBK_DIFF="0.2" BBK_DIFF_Y="0.4"/>
      <bbk:Obs TIME_PERIOD="1954-05" OBS_VALUE="80.804" BBK_DIFF="0.2" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1954-04" OBS_VALUE="80.661" BBK_DIFF="0.1" BBK_DIFF_Y="-0.6"/>
      <bbk:Obs TIME_PERIOD="1954-03" OBS_VALUE="80.591" BBK_DIFF="0.0" BBK_DIFF_Y="-0.7"/>
      <bbk:Obs TIME_PERIOD="1954-02" OBS_VALUE="80.585" BBK_DIFF="0.0" BBK_DIFF_Y="-0.7"/>
      <bbk:Obs TIME_PERIOD="1954-01" OBS_VALUE="80.621" BBK_DIFF="-0.1" BBK_DIFF_Y="-0.7"/>
      <bbk:Obs TIME_PERIOD="1953-12" OBS_VALUE="80.742" BBK_DIFF="-0.3" BBK_DIFF_Y="-0.5"/>
      <bbk:Obs TIME_PERIOD="1953-11" OBS_VALUE="80.996" BBK_DIFF="0.0" BBK_DIFF_Y="-0.2"/>
      <bbk:Obs TIME_PERIOD="1953-10" OBS_VALUE="81.031" BBK_DIFF="0.1" BBK_DIFF_Y="-0.2"/>
      <bbk:Obs TIME_PERIOD="1953-09" OBS_VALUE="80.914" BBK_DIFF="0.1" BBK_DIFF_Y="-0.3"/>
      <bbk:Obs TIME_PERIOD="1953-08" OBS_VALUE="80.872" BBK_DIFF="0.3" BBK_DIFF_Y="-0.4"/>
      <bbk:Obs TIME_PERIOD="1953-07" OBS_VALUE="80.63" BBK_DIFF="0.0" BBK_DIFF_Y="-0.7"/>
      <bbk:Obs TIME_PERIOD="1953-06" OBS_VALUE="80.66" BBK_DIFF="-0.5" BBK_DIFF_Y="-0.6"/>
      <bbk:Obs TIME_PERIOD="1953-05" OBS_VALUE="81.028" BBK_DIFF="-0.2" BBK_DIFF_Y="-0.2"/>
      <bbk:Obs TIME_PERIOD="1953-04" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1953-03" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1953-02" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1953-01" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1952-12" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1952-11" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1952-10" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1952-09" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1952-08" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1952-07" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1952-06" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1952-05" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1952-04" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1952-03" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1952-02" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1952-01" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1951-12" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1951-11" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1951-10" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1951-09" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1951-08" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1951-07" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1951-06" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1951-05" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1951-04" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1951-03" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1951-02" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1951-01" OBS_VALUE="81.18" BBK_DIFF="0.0" BBK_DIFF_Y="0.0"/>
      <bbk:Obs TIME_PERIOD="1950-12" OBS_VALUE="81.18" BBK_DIFF="0.0"/>
      <bbk:Obs TIME_PERIOD="1950-11" OBS_VALUE="81.18" BBK_DIFF="0.0"/>
      <bbk:Obs TIME_PERIOD="1950-10" OBS_VALUE="81.18" BBK_DIFF="0.0"/>
      <bbk:Obs TIME_PERIOD="1950-09" OBS_VALUE="81.18" BBK_DIFF="0.0"/>
      <bbk:Obs TIME_PERIOD="1950-08" OBS_VALUE="81.18" BBK_DIFF="0.0"/>
      <bbk:Obs TIME_PERIOD="1950-07" OBS_VALUE="81.18" BBK_DIFF="0.0"/>
      <bbk:Obs TIME_PERIOD="1950-06" OBS_VALUE="81.18" BBK_DIFF="0.0"/>
      <bbk:Obs TIME_PERIOD="1950-05" OBS_VALUE="81.18" BBK_DIFF="0.0"/>
      <bbk:Obs TIME_PERIOD="1950-04" OBS_VALUE="81.18" BBK_DIFF="0.0"/>
      <bbk:Obs TIME_PERIOD="1950-03" OBS_VALUE="81.18" BBK_DIFF="0.0"/>
      <bbk:Obs TIME_PERIOD="1950-02" OBS_VALUE="81.18" BBK_DIFF="0.0"/>
      <bbk:Obs TIME_PERIOD="1950-01" OBS_VALUE="81.18"/>
    </bbk:Series>
  </bbk:DataSet>
</CompactData>
