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      <bbk:Obs TIME_PERIOD="1989-01" OBS_VALUE="6.89" BBK_DIFF_A="0.05" BBK_DIFF_Y_A="-0.17"/>
      <bbk:Obs TIME_PERIOD="1988-12" OBS_VALUE="6.84" BBK_DIFF_A="0.0" BBK_DIFF_Y_A="-0.07"/>
      <bbk:Obs TIME_PERIOD="1988-11" OBS_VALUE="6.84" BBK_DIFF_A="0.15" BBK_DIFF_Y_A="0.08"/>
      <bbk:Obs TIME_PERIOD="1988-10" OBS_VALUE="6.69" BBK_DIFF_A="-0.24" BBK_DIFF_Y_A="-0.13"/>
      <bbk:Obs TIME_PERIOD="1988-09" OBS_VALUE="6.93" BBK_DIFF_A="-0.25" BBK_DIFF_Y_A="-0.29"/>
      <bbk:Obs TIME_PERIOD="1988-08" OBS_VALUE="7.18" BBK_DIFF_A="-0.06" BBK_DIFF_Y_A="0.28"/>
      <bbk:Obs TIME_PERIOD="1988-07" OBS_VALUE="7.24" BBK_DIFF_A="0.1" BBK_DIFF_Y_A="0.48"/>
      <bbk:Obs TIME_PERIOD="1988-06" OBS_VALUE="7.14" BBK_DIFF_A="-0.03" BBK_DIFF_Y_A="0.59"/>
      <bbk:Obs TIME_PERIOD="1988-05" OBS_VALUE="7.17" BBK_DIFF_A="0.18" BBK_DIFF_Y_A="1.07"/>
      <bbk:Obs TIME_PERIOD="1988-04" OBS_VALUE="6.99" BBK_DIFF_A="0.21" BBK_DIFF_Y_A="0.94"/>
      <bbk:Obs TIME_PERIOD="1988-03" OBS_VALUE="6.78" BBK_DIFF_A="0.05" BBK_DIFF_Y_A="0.73"/>
      <bbk:Obs TIME_PERIOD="1988-02" OBS_VALUE="6.73" BBK_DIFF_A="-0.33" BBK_DIFF_Y_A="0.33"/>
      <bbk:Obs TIME_PERIOD="1988-01" OBS_VALUE="7.06" BBK_DIFF_A="0.15" BBK_DIFF_Y_A="0.83"/>
      <bbk:Obs TIME_PERIOD="1987-12" OBS_VALUE="6.91" BBK_DIFF_A="0.15" BBK_DIFF_Y_A="0.64"/>
      <bbk:Obs TIME_PERIOD="1987-11" OBS_VALUE="6.76" BBK_DIFF_A="-0.06" BBK_DIFF_Y_A="0.52"/>
      <bbk:Obs TIME_PERIOD="1987-10" OBS_VALUE="6.82" BBK_DIFF_A="-0.4" BBK_DIFF_Y_A="0.23"/>
      <bbk:Obs TIME_PERIOD="1987-09" OBS_VALUE="7.22" BBK_DIFF_A="0.32" BBK_DIFF_Y_A="0.88"/>
      <bbk:Obs TIME_PERIOD="1987-08" OBS_VALUE="6.9" BBK_DIFF_A="0.14" BBK_DIFF_Y_A="0.95"/>
      <bbk:Obs TIME_PERIOD="1987-07" OBS_VALUE="6.76" BBK_DIFF_A="0.21" BBK_DIFF_Y_A="0.63"/>
      <bbk:Obs TIME_PERIOD="1987-06" OBS_VALUE="6.55" BBK_DIFF_A="0.45" BBK_DIFF_Y_A="0.39"/>
      <bbk:Obs TIME_PERIOD="1987-05" OBS_VALUE="6.1" BBK_DIFF_A="0.05"/>
      <bbk:Obs TIME_PERIOD="1987-04" OBS_VALUE="6.05" BBK_DIFF_A="0.0"/>
      <bbk:Obs TIME_PERIOD="1987-03" OBS_VALUE="6.05" BBK_DIFF_A="-0.35"/>
      <bbk:Obs TIME_PERIOD="1987-02" OBS_VALUE="6.4" BBK_DIFF_A="0.17"/>
      <bbk:Obs TIME_PERIOD="1987-01" OBS_VALUE="6.23" BBK_DIFF_A="-0.04"/>
      <bbk:Obs TIME_PERIOD="1986-12" OBS_VALUE="6.27" BBK_DIFF_A="0.03"/>
      <bbk:Obs TIME_PERIOD="1986-11" OBS_VALUE="6.24" BBK_DIFF_A="-0.35"/>
      <bbk:Obs TIME_PERIOD="1986-10" OBS_VALUE="6.59" BBK_DIFF_A="0.25"/>
      <bbk:Obs TIME_PERIOD="1986-09" OBS_VALUE="6.34" BBK_DIFF_A="0.39"/>
      <bbk:Obs TIME_PERIOD="1986-08" OBS_VALUE="5.95" BBK_DIFF_A="-0.18"/>
      <bbk:Obs TIME_PERIOD="1986-07" OBS_VALUE="6.13" BBK_DIFF_A="-0.03"/>
      <bbk:Obs TIME_PERIOD="1986-06" OBS_VALUE="6.16"/>
    </bbk:Series>
  </bbk:DataSet>
</CompactData>
