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      <bbk:Obs TIME_PERIOD="1976-08" OBS_VALUE="34.48" BBK_DIFF="1.5" BBK_DIFF_Y="25.4" BBK_EURO="17.629"/>
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      <bbk:Obs TIME_PERIOD="1976-03" OBS_VALUE="32.0" BBK_DIFF="3.8" BBK_DIFF_Y="32.1" BBK_EURO="16.361"/>
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      <bbk:Obs TIME_PERIOD="1975-07" OBS_VALUE="27.102" BBK_DIFF="2.6" BBK_DIFF_Y="50.1" BBK_EURO="13.857"/>
      <bbk:Obs TIME_PERIOD="1975-06" OBS_VALUE="26.406" BBK_DIFF="2.3" BBK_DIFF_Y="50.1" BBK_EURO="13.501"/>
      <bbk:Obs TIME_PERIOD="1975-05" OBS_VALUE="25.819" BBK_DIFF="2.3" BBK_DIFF_Y="49.1" BBK_EURO="13.201"/>
      <bbk:Obs TIME_PERIOD="1975-04" OBS_VALUE="25.242" BBK_DIFF="4.2" BBK_DIFF_Y="48.2" BBK_EURO="12.906"/>
      <bbk:Obs TIME_PERIOD="1975-03" OBS_VALUE="24.218" BBK_DIFF="3.8" BBK_DIFF_Y="43.4" BBK_EURO="12.382"/>
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      <bbk:Obs TIME_PERIOD="1975-01" OBS_VALUE="22.04" BBK_DIFF="9.2" BBK_DIFF_Y="35.5" BBK_EURO="11.269"/>
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      <bbk:Obs TIME_PERIOD="1973-09" OBS_VALUE="14.283" BBK_DIFF="2.7" BBK_DIFF_Y="50.3" BBK_EURO="7.303"/>
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      <bbk:Obs TIME_PERIOD="1973-04" OBS_VALUE="12.279" BBK_DIFF="2.5" BBK_DIFF_Y="46.8" BBK_EURO="6.278"/>
      <bbk:Obs TIME_PERIOD="1973-03" OBS_VALUE="11.982" BBK_DIFF="4.0" BBK_DIFF_Y="46.4" BBK_EURO="6.126"/>
      <bbk:Obs TIME_PERIOD="1973-02" OBS_VALUE="11.522" BBK_DIFF="4.8" BBK_DIFF_Y="47.1" BBK_EURO="5.891"/>
      <bbk:Obs TIME_PERIOD="1973-01" OBS_VALUE="10.995" BBK_DIFF="7.5" BBK_DIFF_Y="47.8" BBK_EURO="5.622"/>
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      <bbk:Obs TIME_PERIOD="1972-11" OBS_VALUE="9.973" BBK_DIFF="2.3" BBK_DIFF_Y="50.4" BBK_EURO="5.099"/>
      <bbk:Obs TIME_PERIOD="1972-10" OBS_VALUE="9.75" BBK_DIFF="2.6" BBK_DIFF_Y="50.9" BBK_EURO="4.985"/>
      <bbk:Obs TIME_PERIOD="1972-09" OBS_VALUE="9.505" BBK_DIFF="2.3" BBK_DIFF_Y="51.2" BBK_EURO="4.86"/>
      <bbk:Obs TIME_PERIOD="1972-08" OBS_VALUE="9.292" BBK_DIFF="3.3" BBK_DIFF_Y="50.8" BBK_EURO="4.751"/>
      <bbk:Obs TIME_PERIOD="1972-07" OBS_VALUE="8.993" BBK_DIFF="3.6" BBK_DIFF_Y="49.2" BBK_EURO="4.598"/>
      <bbk:Obs TIME_PERIOD="1972-06" OBS_VALUE="8.677" BBK_DIFF="2.1" BBK_DIFF_Y="47.8" BBK_EURO="4.436"/>
      <bbk:Obs TIME_PERIOD="1972-05" OBS_VALUE="8.5" BBK_DIFF="1.6" BBK_DIFF_Y="46.7" BBK_EURO="4.346"/>
      <bbk:Obs TIME_PERIOD="1972-04" OBS_VALUE="8.363" BBK_DIFF="2.2" BBK_DIFF_Y="46.7" BBK_EURO="4.276"/>
      <bbk:Obs TIME_PERIOD="1972-03" OBS_VALUE="8.183" BBK_DIFF="4.5" BBK_DIFF_Y="47.5" BBK_EURO="4.184"/>
      <bbk:Obs TIME_PERIOD="1972-02" OBS_VALUE="7.831" BBK_DIFF="5.3" BBK_DIFF_Y="45.0" BBK_EURO="4.004"/>
      <bbk:Obs TIME_PERIOD="1972-01" OBS_VALUE="7.438" BBK_DIFF="7.4" BBK_DIFF_Y="42.5" BBK_EURO="3.803"/>
      <bbk:Obs TIME_PERIOD="1971-12" OBS_VALUE="6.926" BBK_DIFF="4.5" BBK_DIFF_Y="42.5" BBK_EURO="3.541"/>
      <bbk:Obs TIME_PERIOD="1971-11" OBS_VALUE="6.629" BBK_DIFF="2.6" BBK_DIFF_Y="41.3" BBK_EURO="3.389"/>
      <bbk:Obs TIME_PERIOD="1971-10" OBS_VALUE="6.462" BBK_DIFF="2.8" BBK_DIFF_Y="40.2" BBK_EURO="3.304"/>
      <bbk:Obs TIME_PERIOD="1971-09" OBS_VALUE="6.285" BBK_DIFF="2.0" BBK_DIFF_Y="38.7" BBK_EURO="3.213"/>
      <bbk:Obs TIME_PERIOD="1971-08" OBS_VALUE="6.161" BBK_DIFF="2.2" BBK_DIFF_Y="38.2" BBK_EURO="3.15"/>
      <bbk:Obs TIME_PERIOD="1971-07" OBS_VALUE="6.029" BBK_DIFF="2.7" BBK_DIFF_Y="37.7" BBK_EURO="3.083"/>
      <bbk:Obs TIME_PERIOD="1971-06" OBS_VALUE="5.87" BBK_DIFF="1.3" BBK_DIFF_Y="37.7" BBK_EURO="3.001"/>
      <bbk:Obs TIME_PERIOD="1971-05" OBS_VALUE="5.793" BBK_DIFF="1.6" BBK_DIFF_Y="38.4" BBK_EURO="2.962"/>
      <bbk:Obs TIME_PERIOD="1971-04" OBS_VALUE="5.702" BBK_DIFF="2.8" BBK_DIFF_Y="38.7" BBK_EURO="2.915"/>
      <bbk:Obs TIME_PERIOD="1971-03" OBS_VALUE="5.547" BBK_DIFF="2.7" BBK_DIFF_Y="41.1" BBK_EURO="2.836"/>
      <bbk:Obs TIME_PERIOD="1971-02" OBS_VALUE="5.402" BBK_DIFF="3.5" BBK_DIFF_Y="40.5" BBK_EURO="2.762"/>
      <bbk:Obs TIME_PERIOD="1971-01" OBS_VALUE="5.218" BBK_DIFF="7.3" BBK_DIFF_Y="43.0" BBK_EURO="2.668"/>
      <bbk:Obs TIME_PERIOD="1970-12" OBS_VALUE="4.862" BBK_DIFF="3.6" BBK_DIFF_Y="40.6" BBK_EURO="2.486"/>
      <bbk:Obs TIME_PERIOD="1970-11" OBS_VALUE="4.692" BBK_DIFF="1.8" BBK_DIFF_Y="40.6" BBK_EURO="2.399"/>
      <bbk:Obs TIME_PERIOD="1970-10" OBS_VALUE="4.609" BBK_DIFF="1.7" BBK_DIFF_Y="42.2" BBK_EURO="2.357"/>
      <bbk:Obs TIME_PERIOD="1970-09" OBS_VALUE="4.532" BBK_DIFF="1.7" BBK_DIFF_Y="44.5" BBK_EURO="2.317"/>
      <bbk:Obs TIME_PERIOD="1970-08" OBS_VALUE="4.457" BBK_DIFF="1.8" BBK_DIFF_Y="47.1" BBK_EURO="2.279"/>
      <bbk:Obs TIME_PERIOD="1970-07" OBS_VALUE="4.377" BBK_DIFF="2.7" BBK_DIFF_Y="50.8" BBK_EURO="2.238"/>
      <bbk:Obs TIME_PERIOD="1970-06" OBS_VALUE="4.264" BBK_DIFF="1.8" BBK_DIFF_Y="56.9" BBK_EURO="2.18"/>
      <bbk:Obs TIME_PERIOD="1970-05" OBS_VALUE="4.187" BBK_DIFF="1.8" BBK_DIFF_Y="59.4" BBK_EURO="2.141"/>
      <bbk:Obs TIME_PERIOD="1970-04" OBS_VALUE="4.111" BBK_DIFF="4.6" BBK_DIFF_Y="63.2" BBK_EURO="2.102"/>
      <bbk:Obs TIME_PERIOD="1970-03" OBS_VALUE="3.932" BBK_DIFF="2.3" BBK_DIFF_Y="65.1" BBK_EURO="2.01"/>
      <bbk:Obs TIME_PERIOD="1970-02" OBS_VALUE="3.845" BBK_DIFF="5.4" BBK_DIFF_Y="73.2" BBK_EURO="1.966"/>
      <bbk:Obs TIME_PERIOD="1970-01" OBS_VALUE="3.648" BBK_DIFF="5.5" BBK_DIFF_Y="82.1" BBK_EURO="1.865"/>
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      <bbk:Obs TIME_PERIOD="1969-11" OBS_VALUE="3.338" BBK_DIFF="3.0" BBK_EURO="1.707"/>
      <bbk:Obs TIME_PERIOD="1969-10" OBS_VALUE="3.242" BBK_DIFF="3.3" BBK_EURO="1.658"/>
      <bbk:Obs TIME_PERIOD="1969-09" OBS_VALUE="3.137" BBK_DIFF="3.5" BBK_EURO="1.604"/>
      <bbk:Obs TIME_PERIOD="1969-08" OBS_VALUE="3.03" BBK_DIFF="4.4" BBK_EURO="1.549"/>
      <bbk:Obs TIME_PERIOD="1969-07" OBS_VALUE="2.902" BBK_DIFF="6.8" BBK_EURO="1.484"/>
      <bbk:Obs TIME_PERIOD="1969-06" OBS_VALUE="2.718" BBK_DIFF="3.5" BBK_EURO="1.39"/>
      <bbk:Obs TIME_PERIOD="1969-05" OBS_VALUE="2.626" BBK_DIFF="4.2" BBK_EURO="1.343"/>
      <bbk:Obs TIME_PERIOD="1969-04" OBS_VALUE="2.519" BBK_DIFF="5.8" BBK_EURO="1.288"/>
      <bbk:Obs TIME_PERIOD="1969-03" OBS_VALUE="2.382" BBK_DIFF="7.3" BBK_EURO="1.218"/>
      <bbk:Obs TIME_PERIOD="1969-02" OBS_VALUE="2.22" BBK_DIFF="10.8" BBK_EURO="1.135"/>
      <bbk:Obs TIME_PERIOD="1969-01" OBS_VALUE="2.003" BBK_DIFF="22.9" BBK_EURO="1.024"/>
      <bbk:Obs TIME_PERIOD="1968-12" OBS_VALUE="1.63" BBK_EURO="0.833"/>
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  </bbk:DataSet>
</CompactData>
