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      <bbk:Obs TIME_PERIOD="1989-01" OBS_VALUE="6.93" BBK_DIFF_A="0.04" BBK_DIFF_Y_A="-0.23"/>
      <bbk:Obs TIME_PERIOD="1988-12" OBS_VALUE="6.89" BBK_DIFF_A="-0.03" BBK_DIFF_Y_A="-0.1"/>
      <bbk:Obs TIME_PERIOD="1988-11" OBS_VALUE="6.92" BBK_DIFF_A="0.14" BBK_DIFF_Y_A="0.07"/>
      <bbk:Obs TIME_PERIOD="1988-10" OBS_VALUE="6.78" BBK_DIFF_A="-0.23" BBK_DIFF_Y_A="-0.1"/>
      <bbk:Obs TIME_PERIOD="1988-09" OBS_VALUE="7.01" BBK_DIFF_A="-0.24" BBK_DIFF_Y_A="-0.28"/>
      <bbk:Obs TIME_PERIOD="1988-08" OBS_VALUE="7.25" BBK_DIFF_A="-0.06" BBK_DIFF_Y_A="0.28"/>
      <bbk:Obs TIME_PERIOD="1988-07" OBS_VALUE="7.31" BBK_DIFF_A="0.08" BBK_DIFF_Y_A="0.47"/>
      <bbk:Obs TIME_PERIOD="1988-06" OBS_VALUE="7.23" BBK_DIFF_A="-0.04" BBK_DIFF_Y_A="0.61"/>
      <bbk:Obs TIME_PERIOD="1988-05" OBS_VALUE="7.27" BBK_DIFF_A="0.19" BBK_DIFF_Y_A="1.11"/>
      <bbk:Obs TIME_PERIOD="1988-04" OBS_VALUE="7.08" BBK_DIFF_A="0.2" BBK_DIFF_Y_A="0.97"/>
      <bbk:Obs TIME_PERIOD="1988-03" OBS_VALUE="6.88" BBK_DIFF_A="0.05" BBK_DIFF_Y_A="0.79"/>
      <bbk:Obs TIME_PERIOD="1988-02" OBS_VALUE="6.83" BBK_DIFF_A="-0.33" BBK_DIFF_Y_A="0.37"/>
      <bbk:Obs TIME_PERIOD="1988-01" OBS_VALUE="7.16" BBK_DIFF_A="0.17" BBK_DIFF_Y_A="0.88"/>
      <bbk:Obs TIME_PERIOD="1987-12" OBS_VALUE="6.99" BBK_DIFF_A="0.14" BBK_DIFF_Y_A="0.69"/>
      <bbk:Obs TIME_PERIOD="1987-11" OBS_VALUE="6.85" BBK_DIFF_A="-0.03" BBK_DIFF_Y_A="0.59"/>
      <bbk:Obs TIME_PERIOD="1987-10" OBS_VALUE="6.88" BBK_DIFF_A="-0.41" BBK_DIFF_Y_A="0.25"/>
      <bbk:Obs TIME_PERIOD="1987-09" OBS_VALUE="7.29" BBK_DIFF_A="0.32" BBK_DIFF_Y_A="0.92"/>
      <bbk:Obs TIME_PERIOD="1987-08" OBS_VALUE="6.97" BBK_DIFF_A="0.13" BBK_DIFF_Y_A="0.99"/>
      <bbk:Obs TIME_PERIOD="1987-07" OBS_VALUE="6.84" BBK_DIFF_A="0.22" BBK_DIFF_Y_A="0.68"/>
      <bbk:Obs TIME_PERIOD="1987-06" OBS_VALUE="6.62" BBK_DIFF_A="0.46" BBK_DIFF_Y_A="0.43"/>
      <bbk:Obs TIME_PERIOD="1987-05" OBS_VALUE="6.16" BBK_DIFF_A="0.05"/>
      <bbk:Obs TIME_PERIOD="1987-04" OBS_VALUE="6.11" BBK_DIFF_A="0.02"/>
      <bbk:Obs TIME_PERIOD="1987-03" OBS_VALUE="6.09" BBK_DIFF_A="-0.37"/>
      <bbk:Obs TIME_PERIOD="1987-02" OBS_VALUE="6.46" BBK_DIFF_A="0.18"/>
      <bbk:Obs TIME_PERIOD="1987-01" OBS_VALUE="6.28" BBK_DIFF_A="-0.02"/>
      <bbk:Obs TIME_PERIOD="1986-12" OBS_VALUE="6.3" BBK_DIFF_A="0.04"/>
      <bbk:Obs TIME_PERIOD="1986-11" OBS_VALUE="6.26" BBK_DIFF_A="-0.37"/>
      <bbk:Obs TIME_PERIOD="1986-10" OBS_VALUE="6.63" BBK_DIFF_A="0.26"/>
      <bbk:Obs TIME_PERIOD="1986-09" OBS_VALUE="6.37" BBK_DIFF_A="0.39"/>
      <bbk:Obs TIME_PERIOD="1986-08" OBS_VALUE="5.98" BBK_DIFF_A="-0.18"/>
      <bbk:Obs TIME_PERIOD="1986-07" OBS_VALUE="6.16" BBK_DIFF_A="-0.03"/>
      <bbk:Obs TIME_PERIOD="1986-06" OBS_VALUE="6.19"/>
    </bbk:Series>
  </bbk:DataSet>
</CompactData>
