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      <bbk:Obs TIME_PERIOD="1971-11" OBS_VALUE="0.0" BBK_OBS_STATUS="N" BBK_DIFF="-100.0"/>
      <bbk:Obs TIME_PERIOD="1971-10" OBS_VALUE="0.205" BBK_DIFF="206.0"/>
      <bbk:Obs TIME_PERIOD="1971-09" OBS_VALUE="0.067" BBK_DIFF="-64.0"/>
      <bbk:Obs TIME_PERIOD="1971-08" OBS_VALUE="0.186" BBK_DIFF="267.6"/>
      <bbk:Obs TIME_PERIOD="1971-07" OBS_VALUE="-0.111" BBK_DIFF="-103.7"/>
      <bbk:Obs TIME_PERIOD="1971-06" OBS_VALUE="2.982" BBK_DIFF="19780.0"/>
      <bbk:Obs TIME_PERIOD="1971-05" OBS_VALUE="0.015" BBK_DIFF="-95.3"/>
      <bbk:Obs TIME_PERIOD="1971-04" OBS_VALUE="0.317" BBK_DIFF="-68.6"/>
      <bbk:Obs TIME_PERIOD="1971-03" OBS_VALUE="1.011" BBK_DIFF="-1.2"/>
      <bbk:Obs TIME_PERIOD="1971-02" OBS_VALUE="1.023" BBK_DIFF="-57.4"/>
      <bbk:Obs TIME_PERIOD="1971-01" OBS_VALUE="2.4"/>
    </bbk:Series>
  </bbk:DataSet>
</CompactData>
