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      <bbk:Obs TIME_PERIOD="1972-03" OBS_VALUE="-0.039" BBK_DIFF="-184.8"/>
      <bbk:Obs TIME_PERIOD="1972-02" OBS_VALUE="0.046" BBK_DIFF="9.5"/>
      <bbk:Obs TIME_PERIOD="1972-01" OBS_VALUE="0.042" BBK_DIFF="-25.0"/>
      <bbk:Obs TIME_PERIOD="1971-12" OBS_VALUE="0.056" BBK_DIFF="64.7"/>
      <bbk:Obs TIME_PERIOD="1971-11" OBS_VALUE="0.034" BBK_DIFF="-57.0"/>
      <bbk:Obs TIME_PERIOD="1971-10" OBS_VALUE="0.079" BBK_DIFF="203.8"/>
      <bbk:Obs TIME_PERIOD="1971-09" OBS_VALUE="0.026"/>
      <bbk:Obs TIME_PERIOD="1971-08" OBS_VALUE="0.0" BBK_OBS_STATUS="N"/>
      <bbk:Obs TIME_PERIOD="1971-07" OBS_VALUE="0.0" BBK_OBS_STATUS="N"/>
      <bbk:Obs TIME_PERIOD="1971-06" OBS_VALUE="0.0" BBK_OBS_STATUS="N"/>
      <bbk:Obs TIME_PERIOD="1971-05" OBS_VALUE="0.0" BBK_OBS_STATUS="N"/>
      <bbk:Obs TIME_PERIOD="1971-04" OBS_VALUE="0.0" BBK_OBS_STATUS="N"/>
      <bbk:Obs TIME_PERIOD="1971-03" OBS_VALUE="0.0" BBK_OBS_STATUS="N"/>
      <bbk:Obs TIME_PERIOD="1971-02" OBS_VALUE="0.0" BBK_OBS_STATUS="N"/>
      <bbk:Obs TIME_PERIOD="1971-01" OBS_VALUE="0.0" BBK_OBS_STATUS="N"/>
    </bbk:Series>
  </bbk:DataSet>
</CompactData>
