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      <bbk:Obs TIME_PERIOD="1977-05" OBS_VALUE="5.704" BBK_DIFF="-10.2" BBK_DIFF_Y="-3.6" BBK_EURO="2.916"/>
      <bbk:Obs TIME_PERIOD="1977-04" OBS_VALUE="6.355" BBK_DIFF="2.0" BBK_DIFF_Y="-4.1" BBK_EURO="3.249"/>
      <bbk:Obs TIME_PERIOD="1977-03" OBS_VALUE="6.229" BBK_DIFF="5.5" BBK_DIFF_Y="-0.7" BBK_EURO="3.185"/>
      <bbk:Obs TIME_PERIOD="1977-02" OBS_VALUE="5.907" BBK_DIFF="-5.7" BBK_DIFF_Y="-0.2" BBK_EURO="3.02"/>
      <bbk:Obs TIME_PERIOD="1977-01" OBS_VALUE="6.263" BBK_DIFF="-9.8" BBK_DIFF_Y="-0.1" BBK_EURO="3.202"/>
      <bbk:Obs TIME_PERIOD="1976-12" OBS_VALUE="6.943" BBK_DIFF="36.5" BBK_DIFF_Y="-1.4" BBK_EURO="3.55"/>
      <bbk:Obs TIME_PERIOD="1976-11" OBS_VALUE="5.085" BBK_DIFF="-12.1" BBK_DIFF_Y="4.5" BBK_EURO="2.6"/>
      <bbk:Obs TIME_PERIOD="1976-10" OBS_VALUE="5.782" BBK_DIFF="4.1" BBK_DIFF_Y="7.7" BBK_EURO="2.956"/>
      <bbk:Obs TIME_PERIOD="1976-09" OBS_VALUE="5.556" BBK_DIFF="7.5" BBK_DIFF_Y="12.1" BBK_EURO="2.841"/>
      <bbk:Obs TIME_PERIOD="1976-08" OBS_VALUE="5.17" BBK_DIFF="-1.9" BBK_DIFF_Y="15.2" BBK_EURO="2.643"/>
      <bbk:Obs TIME_PERIOD="1976-07" OBS_VALUE="5.269" BBK_DIFF="-3.1" BBK_DIFF_Y="14.9" BBK_EURO="2.694"/>
      <bbk:Obs TIME_PERIOD="1976-06" OBS_VALUE="5.438" BBK_DIFF="-8.1" BBK_DIFF_Y="10.6" BBK_EURO="2.78"/>
      <bbk:Obs TIME_PERIOD="1976-05" OBS_VALUE="5.915" BBK_DIFF="-10.7" BBK_DIFF_Y="13.8" BBK_EURO="3.024"/>
      <bbk:Obs TIME_PERIOD="1976-04" OBS_VALUE="6.627" BBK_DIFF="5.6" BBK_DIFF_Y="17.1" BBK_EURO="3.388"/>
      <bbk:Obs TIME_PERIOD="1976-03" OBS_VALUE="6.273" BBK_DIFF="6.0" BBK_DIFF_Y="11.5" BBK_EURO="3.207"/>
      <bbk:Obs TIME_PERIOD="1976-02" OBS_VALUE="5.917" BBK_DIFF="-5.6" BBK_DIFF_Y="9.1" BBK_EURO="3.025"/>
      <bbk:Obs TIME_PERIOD="1976-01" OBS_VALUE="6.269" BBK_DIFF="-11.0" BBK_DIFF_Y="11.1" BBK_EURO="3.205"/>
      <bbk:Obs TIME_PERIOD="1975-12" OBS_VALUE="7.041" BBK_DIFF="44.7" BBK_DIFF_Y="17.5" BBK_EURO="3.6"/>
      <bbk:Obs TIME_PERIOD="1975-11" OBS_VALUE="4.867" BBK_DIFF="-9.3" BBK_DIFF_Y="34.3" BBK_EURO="2.488"/>
      <bbk:Obs TIME_PERIOD="1975-10" OBS_VALUE="5.367" BBK_DIFF="8.3" BBK_DIFF_Y="30.0" BBK_EURO="2.744"/>
      <bbk:Obs TIME_PERIOD="1975-09" OBS_VALUE="4.955" BBK_DIFF="10.4" BBK_DIFF_Y="22.4" BBK_EURO="2.533"/>
      <bbk:Obs TIME_PERIOD="1975-08" OBS_VALUE="4.489" BBK_DIFF="-2.1" BBK_DIFF_Y="23.5" BBK_EURO="2.295"/>
      <bbk:Obs TIME_PERIOD="1975-07" OBS_VALUE="4.584" BBK_DIFF="-6.7" BBK_DIFF_Y="24.9" BBK_EURO="2.344"/>
      <bbk:Obs TIME_PERIOD="1975-06" OBS_VALUE="4.915" BBK_DIFF="-5.4" BBK_DIFF_Y="19.8" BBK_EURO="2.513"/>
      <bbk:Obs TIME_PERIOD="1975-05" OBS_VALUE="5.198" BBK_DIFF="-8.1" BBK_DIFF_Y="15.6" BBK_EURO="2.658"/>
      <bbk:Obs TIME_PERIOD="1975-04" OBS_VALUE="5.658" BBK_DIFF="0.6" BBK_DIFF_Y="16.5" BBK_EURO="2.893"/>
      <bbk:Obs TIME_PERIOD="1975-03" OBS_VALUE="5.627" BBK_DIFF="3.7" BBK_DIFF_Y="23.0" BBK_EURO="2.877"/>
      <bbk:Obs TIME_PERIOD="1975-02" OBS_VALUE="5.425" BBK_DIFF="-3.9" BBK_DIFF_Y="18.4" BBK_EURO="2.774"/>
      <bbk:Obs TIME_PERIOD="1975-01" OBS_VALUE="5.644" BBK_DIFF="-5.8" BBK_DIFF_Y="13.4" BBK_EURO="2.886"/>
      <bbk:Obs TIME_PERIOD="1974-12" OBS_VALUE="5.992" BBK_DIFF="65.3" BBK_DIFF_Y="13.6" BBK_EURO="3.064"/>
      <bbk:Obs TIME_PERIOD="1974-11" OBS_VALUE="3.625" BBK_DIFF="-12.2" BBK_EURO="1.853"/>
      <bbk:Obs TIME_PERIOD="1974-10" OBS_VALUE="4.128" BBK_DIFF="2.0" BBK_EURO="2.111"/>
      <bbk:Obs TIME_PERIOD="1974-09" OBS_VALUE="4.048" BBK_DIFF="11.4" BBK_EURO="2.07"/>
      <bbk:Obs TIME_PERIOD="1974-08" OBS_VALUE="3.635" BBK_DIFF="-1.0" BBK_EURO="1.859"/>
      <bbk:Obs TIME_PERIOD="1974-07" OBS_VALUE="3.67" BBK_DIFF="-10.5" BBK_EURO="1.876"/>
      <bbk:Obs TIME_PERIOD="1974-06" OBS_VALUE="4.101" BBK_DIFF="-8.8" BBK_EURO="2.097"/>
      <bbk:Obs TIME_PERIOD="1974-05" OBS_VALUE="4.496" BBK_DIFF="-7.4" BBK_EURO="2.299"/>
      <bbk:Obs TIME_PERIOD="1974-04" OBS_VALUE="4.857" BBK_DIFF="6.2" BBK_EURO="2.483"/>
      <bbk:Obs TIME_PERIOD="1974-03" OBS_VALUE="4.573" BBK_DIFF="-0.2" BBK_EURO="2.338"/>
      <bbk:Obs TIME_PERIOD="1974-02" OBS_VALUE="4.582" BBK_DIFF="-7.9" BBK_EURO="2.343"/>
      <bbk:Obs TIME_PERIOD="1974-01" OBS_VALUE="4.977" BBK_DIFF="-5.7" BBK_EURO="2.545"/>
      <bbk:Obs TIME_PERIOD="1973-12" OBS_VALUE="5.276" BBK_EURO="2.698"/>
    </bbk:Series>
  </bbk:DataSet>
</CompactData>
