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      <bbk:Obs TIME_PERIOD="1972-08" OBS_VALUE="506.0" BBK_DIFF="11.2" BBK_DIFF_Y="468.5" BBK_EURO="259.0"/>
      <bbk:Obs TIME_PERIOD="1972-07" OBS_VALUE="455.0" BBK_DIFF="-9.7" BBK_DIFF_Y="279.2" BBK_EURO="233.0"/>
      <bbk:Obs TIME_PERIOD="1972-06" OBS_VALUE="504.0" BBK_DIFF="92.4" BBK_DIFF_Y="323.5" BBK_EURO="258.0"/>
      <bbk:Obs TIME_PERIOD="1972-05" OBS_VALUE="262.0" BBK_DIFF="-9.0" BBK_DIFF_Y="227.5" BBK_EURO="134.0"/>
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      <bbk:Obs TIME_PERIOD="1972-03" OBS_VALUE="331.0" BBK_DIFF="-26.4" BBK_DIFF_Y="94.7" BBK_EURO="169.0"/>
      <bbk:Obs TIME_PERIOD="1972-02" OBS_VALUE="450.0" BBK_DIFF="30.8" BBK_DIFF_Y="174.4" BBK_EURO="230.0"/>
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      <bbk:Obs TIME_PERIOD="1970-07" OBS_VALUE="80.0" BBK_DIFF="12.7" BBK_EURO="41.0"/>
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      <bbk:Obs TIME_PERIOD="1970-05" OBS_VALUE="-71.0" BBK_DIFF="-143.3" BBK_EURO="-36.0"/>
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      <bbk:Obs TIME_PERIOD="1970-03" OBS_VALUE="213.0" BBK_DIFF="-20.5" BBK_EURO="109.0"/>
      <bbk:Obs TIME_PERIOD="1970-02" OBS_VALUE="268.0" BBK_DIFF="-30.7" BBK_EURO="137.0"/>
      <bbk:Obs TIME_PERIOD="1970-01" OBS_VALUE="387.0" BBK_EURO="198.0"/>
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  </bbk:DataSet>
</CompactData>
