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      <bbk:Obs TIME_PERIOD="1976-08" OBS_VALUE="8.231" BBK_DIFF="1.0" BBK_DIFF_Y="37.5" BBK_EURO="4.208"/>
      <bbk:Obs TIME_PERIOD="1976-07" OBS_VALUE="8.153" BBK_DIFF="0.7" BBK_DIFF_Y="41.1" BBK_EURO="4.169"/>
      <bbk:Obs TIME_PERIOD="1976-06" OBS_VALUE="8.096" BBK_DIFF="0.7" BBK_DIFF_Y="55.6" BBK_EURO="4.139"/>
      <bbk:Obs TIME_PERIOD="1976-05" OBS_VALUE="8.037" BBK_DIFF="1.4" BBK_DIFF_Y="66.1" BBK_EURO="4.109"/>
      <bbk:Obs TIME_PERIOD="1976-04" OBS_VALUE="7.924" BBK_DIFF="3.5" BBK_DIFF_Y="64.3" BBK_EURO="4.051"/>
      <bbk:Obs TIME_PERIOD="1976-03" OBS_VALUE="7.653" BBK_DIFF="0.5" BBK_DIFF_Y="67.4" BBK_EURO="3.913"/>
      <bbk:Obs TIME_PERIOD="1976-02" OBS_VALUE="7.617" BBK_DIFF="4.6" BBK_DIFF_Y="69.2" BBK_EURO="3.895"/>
      <bbk:Obs TIME_PERIOD="1976-01" OBS_VALUE="7.283" BBK_DIFF="-5.3" BBK_DIFF_Y="67.4" BBK_EURO="3.724"/>
      <bbk:Obs TIME_PERIOD="1975-12" OBS_VALUE="7.688" BBK_DIFF="8.1" BBK_DIFF_Y="76.6" BBK_EURO="3.931"/>
      <bbk:Obs TIME_PERIOD="1975-11" OBS_VALUE="7.109" BBK_DIFF="2.6" BBK_DIFF_Y="85.7" BBK_EURO="3.635"/>
      <bbk:Obs TIME_PERIOD="1975-10" OBS_VALUE="6.926" BBK_DIFF="-0.1" BBK_DIFF_Y="87.7" BBK_EURO="3.541"/>
      <bbk:Obs TIME_PERIOD="1975-09" OBS_VALUE="6.933" BBK_DIFF="15.8" BBK_DIFF_Y="92.5" BBK_EURO="3.545"/>
      <bbk:Obs TIME_PERIOD="1975-08" OBS_VALUE="5.987" BBK_DIFF="3.6" BBK_DIFF_Y="66.5" BBK_EURO="3.061"/>
      <bbk:Obs TIME_PERIOD="1975-07" OBS_VALUE="5.78" BBK_DIFF="11.1" BBK_DIFF_Y="67.3" BBK_EURO="2.955"/>
      <bbk:Obs TIME_PERIOD="1975-06" OBS_VALUE="5.204" BBK_DIFF="7.5" BBK_DIFF_Y="69.6" BBK_EURO="2.661"/>
      <bbk:Obs TIME_PERIOD="1975-05" OBS_VALUE="4.839" BBK_DIFF="0.3" BBK_DIFF_Y="92.6" BBK_EURO="2.474"/>
      <bbk:Obs TIME_PERIOD="1975-04" OBS_VALUE="4.824" BBK_DIFF="5.5" BBK_DIFF_Y="80.2" BBK_EURO="2.466"/>
      <bbk:Obs TIME_PERIOD="1975-03" OBS_VALUE="4.572" BBK_DIFF="1.5" BBK_DIFF_Y="93.1" BBK_EURO="2.338"/>
      <bbk:Obs TIME_PERIOD="1975-02" OBS_VALUE="4.503" BBK_DIFF="3.5" BBK_DIFF_Y="95.5" BBK_EURO="2.302"/>
      <bbk:Obs TIME_PERIOD="1975-01" OBS_VALUE="4.35" BBK_DIFF="-0.1" BBK_DIFF_Y="90.5" BBK_EURO="2.224"/>
      <bbk:Obs TIME_PERIOD="1974-12" OBS_VALUE="4.353" BBK_DIFF="13.7" BBK_DIFF_Y="92.9" BBK_EURO="2.226"/>
      <bbk:Obs TIME_PERIOD="1974-11" OBS_VALUE="3.829" BBK_DIFF="3.8" BBK_DIFF_Y="93.6" BBK_EURO="1.958"/>
      <bbk:Obs TIME_PERIOD="1974-10" OBS_VALUE="3.69" BBK_DIFF="2.4" BBK_DIFF_Y="128.1" BBK_EURO="1.887"/>
      <bbk:Obs TIME_PERIOD="1974-09" OBS_VALUE="3.602" BBK_DIFF="0.2" BBK_DIFF_Y="163.3" BBK_EURO="1.842"/>
      <bbk:Obs TIME_PERIOD="1974-08" OBS_VALUE="3.595" BBK_DIFF="4.1" BBK_DIFF_Y="162.8" BBK_EURO="1.838"/>
      <bbk:Obs TIME_PERIOD="1974-07" OBS_VALUE="3.455" BBK_DIFF="12.6" BBK_DIFF_Y="200.2" BBK_EURO="1.767"/>
      <bbk:Obs TIME_PERIOD="1974-06" OBS_VALUE="3.069" BBK_DIFF="22.2" BBK_DIFF_Y="164.6" BBK_EURO="1.569"/>
      <bbk:Obs TIME_PERIOD="1974-05" OBS_VALUE="2.512" BBK_DIFF="-6.2" BBK_EURO="1.284"/>
      <bbk:Obs TIME_PERIOD="1974-04" OBS_VALUE="2.677" BBK_DIFF="13.0" BBK_EURO="1.369"/>
      <bbk:Obs TIME_PERIOD="1974-03" OBS_VALUE="2.368" BBK_DIFF="2.8" BBK_EURO="1.211"/>
      <bbk:Obs TIME_PERIOD="1974-02" OBS_VALUE="2.303" BBK_DIFF="0.9" BBK_EURO="1.178"/>
      <bbk:Obs TIME_PERIOD="1974-01" OBS_VALUE="2.283" BBK_DIFF="1.2" BBK_EURO="1.167"/>
      <bbk:Obs TIME_PERIOD="1973-12" OBS_VALUE="2.257" BBK_DIFF="14.1" BBK_EURO="1.154"/>
      <bbk:Obs TIME_PERIOD="1973-11" OBS_VALUE="1.978" BBK_DIFF="22.2" BBK_EURO="1.011"/>
      <bbk:Obs TIME_PERIOD="1973-10" OBS_VALUE="1.618" BBK_DIFF="18.3" BBK_EURO="0.827"/>
      <bbk:Obs TIME_PERIOD="1973-09" OBS_VALUE="1.368" BBK_DIFF="0.0" BBK_EURO="0.699"/>
      <bbk:Obs TIME_PERIOD="1973-08" OBS_VALUE="1.368" BBK_DIFF="18.9" BBK_EURO="0.699"/>
      <bbk:Obs TIME_PERIOD="1973-07" OBS_VALUE="1.151" BBK_DIFF="-0.8" BBK_EURO="0.588"/>
      <bbk:Obs TIME_PERIOD="1973-06" OBS_VALUE="1.16" BBK_EURO="0.593"/>
    </bbk:Series>
  </bbk:DataSet>
</CompactData>
