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      <bbk:Obs TIME_PERIOD="1976-07" OBS_VALUE="16.401" BBK_DIFF="2.4" BBK_DIFF_Y="32.0" BBK_EURO="8.386"/>
      <bbk:Obs TIME_PERIOD="1976-06" OBS_VALUE="16.009" BBK_DIFF="-4.7" BBK_DIFF_Y="38.3" BBK_EURO="8.185"/>
      <bbk:Obs TIME_PERIOD="1976-05" OBS_VALUE="16.794" BBK_DIFF="7.1" BBK_DIFF_Y="49.1" BBK_EURO="8.587"/>
      <bbk:Obs TIME_PERIOD="1976-04" OBS_VALUE="15.678" BBK_DIFF="6.1" BBK_DIFF_Y="33.4" BBK_EURO="8.016"/>
      <bbk:Obs TIME_PERIOD="1976-03" OBS_VALUE="14.779" BBK_DIFF="-1.7" BBK_DIFF_Y="35.2" BBK_EURO="7.556"/>
      <bbk:Obs TIME_PERIOD="1976-02" OBS_VALUE="15.037" BBK_DIFF="7.8" BBK_DIFF_Y="26.4" BBK_EURO="7.688"/>
      <bbk:Obs TIME_PERIOD="1976-01" OBS_VALUE="13.954" BBK_DIFF="-2.4" BBK_DIFF_Y="27.3" BBK_EURO="7.135"/>
      <bbk:Obs TIME_PERIOD="1975-12" OBS_VALUE="14.29" BBK_DIFF="11.7" BBK_DIFF_Y="23.9" BBK_EURO="7.306"/>
      <bbk:Obs TIME_PERIOD="1975-11" OBS_VALUE="12.795" BBK_DIFF="7.4" BBK_DIFF_Y="-1.8" BBK_EURO="6.542"/>
      <bbk:Obs TIME_PERIOD="1975-10" OBS_VALUE="11.917" BBK_DIFF="-13.0" BBK_DIFF_Y="-9.5" BBK_EURO="6.093"/>
      <bbk:Obs TIME_PERIOD="1975-09" OBS_VALUE="13.69" BBK_DIFF="1.6" BBK_DIFF_Y="-4.0" BBK_EURO="7.0"/>
      <bbk:Obs TIME_PERIOD="1975-08" OBS_VALUE="13.474" BBK_DIFF="8.4" BBK_DIFF_Y="-6.6" BBK_EURO="6.889"/>
      <bbk:Obs TIME_PERIOD="1975-07" OBS_VALUE="12.428" BBK_DIFF="7.4" BBK_DIFF_Y="-6.9" BBK_EURO="6.354"/>
      <bbk:Obs TIME_PERIOD="1975-06" OBS_VALUE="11.575" BBK_DIFF="2.8" BBK_DIFF_Y="-10.0" BBK_EURO="5.918"/>
      <bbk:Obs TIME_PERIOD="1975-05" OBS_VALUE="11.261" BBK_DIFF="-4.2" BBK_DIFF_Y="-11.4" BBK_EURO="5.758"/>
      <bbk:Obs TIME_PERIOD="1975-04" OBS_VALUE="11.756" BBK_DIFF="7.5" BBK_DIFF_Y="-4.3" BBK_EURO="6.011"/>
      <bbk:Obs TIME_PERIOD="1975-03" OBS_VALUE="10.931" BBK_DIFF="-8.1" BBK_DIFF_Y="-13.3" BBK_EURO="5.589"/>
      <bbk:Obs TIME_PERIOD="1975-02" OBS_VALUE="11.892" BBK_DIFF="8.5" BBK_DIFF_Y="1.6" BBK_EURO="6.08"/>
      <bbk:Obs TIME_PERIOD="1975-01" OBS_VALUE="10.965" BBK_DIFF="-4.9" BBK_DIFF_Y="-11.6" BBK_EURO="5.606"/>
      <bbk:Obs TIME_PERIOD="1974-12" OBS_VALUE="11.532" BBK_DIFF="-11.5" BBK_DIFF_Y="-5.7" BBK_EURO="5.896"/>
      <bbk:Obs TIME_PERIOD="1974-11" OBS_VALUE="13.029" BBK_DIFF="-1.1" BBK_DIFF_Y="23.9" BBK_EURO="6.662"/>
      <bbk:Obs TIME_PERIOD="1974-10" OBS_VALUE="13.175" BBK_DIFF="-7.6" BBK_DIFF_Y="27.2" BBK_EURO="6.736"/>
      <bbk:Obs TIME_PERIOD="1974-09" OBS_VALUE="14.259" BBK_DIFF="-1.1" BBK_DIFF_Y="53.2" BBK_EURO="7.291"/>
      <bbk:Obs TIME_PERIOD="1974-08" OBS_VALUE="14.422" BBK_DIFF="8.0" BBK_DIFF_Y="63.1" BBK_EURO="7.374"/>
      <bbk:Obs TIME_PERIOD="1974-07" OBS_VALUE="13.354" BBK_DIFF="3.8" BBK_DIFF_Y="94.2" BBK_EURO="6.828"/>
      <bbk:Obs TIME_PERIOD="1974-06" OBS_VALUE="12.862" BBK_DIFF="1.2" BBK_DIFF_Y="135.4" BBK_EURO="6.576"/>
      <bbk:Obs TIME_PERIOD="1974-05" OBS_VALUE="12.714" BBK_DIFF="3.5" BBK_EURO="6.501"/>
      <bbk:Obs TIME_PERIOD="1974-04" OBS_VALUE="12.282" BBK_DIFF="-2.6" BBK_EURO="6.28"/>
      <bbk:Obs TIME_PERIOD="1974-03" OBS_VALUE="12.613" BBK_DIFF="7.7" BBK_EURO="6.449"/>
      <bbk:Obs TIME_PERIOD="1974-02" OBS_VALUE="11.708" BBK_DIFF="-5.6" BBK_EURO="5.986"/>
      <bbk:Obs TIME_PERIOD="1974-01" OBS_VALUE="12.398" BBK_DIFF="1.4" BBK_EURO="6.339"/>
      <bbk:Obs TIME_PERIOD="1973-12" OBS_VALUE="12.232" BBK_DIFF="16.3" BBK_EURO="6.254"/>
      <bbk:Obs TIME_PERIOD="1973-11" OBS_VALUE="10.517" BBK_DIFF="1.6" BBK_EURO="5.377"/>
      <bbk:Obs TIME_PERIOD="1973-10" OBS_VALUE="10.355" BBK_DIFF="11.2" BBK_EURO="5.294"/>
      <bbk:Obs TIME_PERIOD="1973-09" OBS_VALUE="9.308" BBK_DIFF="5.3" BBK_EURO="4.759"/>
      <bbk:Obs TIME_PERIOD="1973-08" OBS_VALUE="8.84" BBK_DIFF="28.6" BBK_EURO="4.52"/>
      <bbk:Obs TIME_PERIOD="1973-07" OBS_VALUE="6.876" BBK_DIFF="25.9" BBK_EURO="3.516"/>
      <bbk:Obs TIME_PERIOD="1973-06" OBS_VALUE="5.463" BBK_EURO="2.793"/>
    </bbk:Series>
  </bbk:DataSet>
</CompactData>
