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      <bbk:Obs TIME_PERIOD="1971-08" OBS_VALUE="5.599" BBK_DIFF="3.0" BBK_DIFF_Y="131.8" BBK_EURO="2.863"/>
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      <bbk:Obs TIME_PERIOD="1971-06" OBS_VALUE="4.729" BBK_DIFF="5.8" BBK_DIFF_Y="193.5" BBK_EURO="2.418"/>
      <bbk:Obs TIME_PERIOD="1971-05" OBS_VALUE="4.469" BBK_DIFF="4.6" BBK_DIFF_Y="268.7" BBK_EURO="2.285"/>
      <bbk:Obs TIME_PERIOD="1971-04" OBS_VALUE="4.274" BBK_DIFF="6.4" BBK_DIFF_Y="284.4" BBK_EURO="2.185"/>
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      <bbk:Obs TIME_PERIOD="1970-03" OBS_VALUE="1.083" BBK_DIFF="5.6" BBK_DIFF_Y="35.9" BBK_EURO="0.554"/>
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      <bbk:Obs TIME_PERIOD="1969-04" OBS_VALUE="1.022" BBK_DIFF="28.2" BBK_EURO="0.523"/>
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  </bbk:DataSet>
</CompactData>
