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      <bbk:Obs TIME_PERIOD="1971-04" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1971-03" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1971-02" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1971-01" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1970-12" OBS_VALUE="0.589" BBK_DIFF_Y="44.7" BBK_EURO="0.301"/>
      <bbk:Obs TIME_PERIOD="1970-11" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1970-10" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1970-09" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1970-08" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1970-07" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1970-06" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1970-05" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1970-04" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1970-03" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1970-02" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1970-01" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1969-12" OBS_VALUE="0.407" BBK_DIFF_Y="11.8" BBK_EURO="0.208"/>
      <bbk:Obs TIME_PERIOD="1969-11" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1969-10" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1969-09" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1969-08" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1969-07" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1969-06" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1969-05" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1969-04" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1969-03" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1969-02" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1969-01" BBK_OBS_STATUS="K"/>
      <bbk:Obs TIME_PERIOD="1968-12" OBS_VALUE="0.364" BBK_EURO="0.186"/>
    </bbk:Series>
  </bbk:DataSet>
</CompactData>
