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      <bbk:Obs TIME_PERIOD="1971-10" OBS_VALUE="30.903" BBK_DIFF="0.2" BBK_DIFF_Y="0.4" BBK_EURO="15.8"/>
      <bbk:Obs TIME_PERIOD="1971-09" OBS_VALUE="30.844" BBK_DIFF="0.4" BBK_DIFF_Y="0.6" BBK_EURO="15.77"/>
      <bbk:Obs TIME_PERIOD="1971-08" OBS_VALUE="30.722" BBK_DIFF="0.7" BBK_DIFF_Y="0.3" BBK_EURO="15.708"/>
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      <bbk:Obs TIME_PERIOD="1971-05" OBS_VALUE="30.573" BBK_DIFF="0.5" BBK_DIFF_Y="0.9" BBK_EURO="15.632"/>
      <bbk:Obs TIME_PERIOD="1971-04" OBS_VALUE="30.432" BBK_DIFF="0.2" BBK_DIFF_Y="1.0" BBK_EURO="15.56"/>
      <bbk:Obs TIME_PERIOD="1971-03" OBS_VALUE="30.382" BBK_DIFF="0.6" BBK_DIFF_Y="0.7" BBK_EURO="15.534"/>
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      <bbk:Obs TIME_PERIOD="1971-01" OBS_VALUE="30.121" BBK_DIFF="-0.6" BBK_DIFF_Y="0.5" BBK_EURO="15.401"/>
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</CompactData>
