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      <bbk:Obs TIME_PERIOD="1989-01" OBS_VALUE="7.0" BBK_DIFF_A="0.04" BBK_DIFF_Y_A="-0.25"/>
      <bbk:Obs TIME_PERIOD="1988-12" OBS_VALUE="6.96" BBK_DIFF_A="-0.04" BBK_DIFF_Y_A="-0.11"/>
      <bbk:Obs TIME_PERIOD="1988-11" OBS_VALUE="7.0" BBK_DIFF_A="0.12" BBK_DIFF_Y_A="0.03"/>
      <bbk:Obs TIME_PERIOD="1988-10" OBS_VALUE="6.88" BBK_DIFF_A="-0.24" BBK_DIFF_Y_A="-0.06"/>
      <bbk:Obs TIME_PERIOD="1988-09" OBS_VALUE="7.12" BBK_DIFF_A="-0.2" BBK_DIFF_Y_A="-0.24"/>
      <bbk:Obs TIME_PERIOD="1988-08" OBS_VALUE="7.32" BBK_DIFF_A="-0.07" BBK_DIFF_Y_A="0.28"/>
      <bbk:Obs TIME_PERIOD="1988-07" OBS_VALUE="7.39" BBK_DIFF_A="0.07" BBK_DIFF_Y_A="0.47"/>
      <bbk:Obs TIME_PERIOD="1988-06" OBS_VALUE="7.32" BBK_DIFF_A="-0.04" BBK_DIFF_Y_A="0.63"/>
      <bbk:Obs TIME_PERIOD="1988-05" OBS_VALUE="7.36" BBK_DIFF_A="0.19" BBK_DIFF_Y_A="1.13"/>
      <bbk:Obs TIME_PERIOD="1988-04" OBS_VALUE="7.17" BBK_DIFF_A="0.17" BBK_DIFF_Y_A="1.01"/>
      <bbk:Obs TIME_PERIOD="1988-03" OBS_VALUE="7.0" BBK_DIFF_A="0.06" BBK_DIFF_Y_A="0.86"/>
      <bbk:Obs TIME_PERIOD="1988-02" OBS_VALUE="6.94" BBK_DIFF_A="-0.31" BBK_DIFF_Y_A="0.42"/>
      <bbk:Obs TIME_PERIOD="1988-01" OBS_VALUE="7.25" BBK_DIFF_A="0.18" BBK_DIFF_Y_A="0.93"/>
      <bbk:Obs TIME_PERIOD="1987-12" OBS_VALUE="7.07" BBK_DIFF_A="0.1" BBK_DIFF_Y_A="0.74"/>
      <bbk:Obs TIME_PERIOD="1987-11" OBS_VALUE="6.97" BBK_DIFF_A="0.03" BBK_DIFF_Y_A="0.68"/>
      <bbk:Obs TIME_PERIOD="1987-10" OBS_VALUE="6.94" BBK_DIFF_A="-0.42" BBK_DIFF_Y_A="0.26"/>
      <bbk:Obs TIME_PERIOD="1987-09" OBS_VALUE="7.36" BBK_DIFF_A="0.32" BBK_DIFF_Y_A="0.95"/>
      <bbk:Obs TIME_PERIOD="1987-08" OBS_VALUE="7.04" BBK_DIFF_A="0.12" BBK_DIFF_Y_A="1.03"/>
      <bbk:Obs TIME_PERIOD="1987-07" OBS_VALUE="6.92" BBK_DIFF_A="0.23" BBK_DIFF_Y_A="0.73"/>
      <bbk:Obs TIME_PERIOD="1987-06" OBS_VALUE="6.69" BBK_DIFF_A="0.46" BBK_DIFF_Y_A="0.48"/>
      <bbk:Obs TIME_PERIOD="1987-05" OBS_VALUE="6.23" BBK_DIFF_A="0.07"/>
      <bbk:Obs TIME_PERIOD="1987-04" OBS_VALUE="6.16" BBK_DIFF_A="0.02"/>
      <bbk:Obs TIME_PERIOD="1987-03" OBS_VALUE="6.14" BBK_DIFF_A="-0.38"/>
      <bbk:Obs TIME_PERIOD="1987-02" OBS_VALUE="6.52" BBK_DIFF_A="0.2"/>
      <bbk:Obs TIME_PERIOD="1987-01" OBS_VALUE="6.32" BBK_DIFF_A="-0.01"/>
      <bbk:Obs TIME_PERIOD="1986-12" OBS_VALUE="6.33" BBK_DIFF_A="0.04"/>
      <bbk:Obs TIME_PERIOD="1986-11" OBS_VALUE="6.29" BBK_DIFF_A="-0.39"/>
      <bbk:Obs TIME_PERIOD="1986-10" OBS_VALUE="6.68" BBK_DIFF_A="0.27"/>
      <bbk:Obs TIME_PERIOD="1986-09" OBS_VALUE="6.41" BBK_DIFF_A="0.4"/>
      <bbk:Obs TIME_PERIOD="1986-08" OBS_VALUE="6.01" BBK_DIFF_A="-0.18"/>
      <bbk:Obs TIME_PERIOD="1986-07" OBS_VALUE="6.19" BBK_DIFF_A="-0.02"/>
      <bbk:Obs TIME_PERIOD="1986-06" OBS_VALUE="6.21"/>
    </bbk:Series>
  </bbk:DataSet>
</CompactData>
