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      <bbk:Obs TIME_PERIOD="1977-02" OBS_VALUE="21.975" BBK_DIFF="0.3" BBK_DIFF_Y="6.0" BBK_EURO="11.236"/>
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      <bbk:Obs TIME_PERIOD="1976-08" OBS_VALUE="21.264" BBK_DIFF="0.3" BBK_DIFF_Y="5.9" BBK_EURO="10.872"/>
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      <bbk:Obs TIME_PERIOD="1976-04" OBS_VALUE="20.911" BBK_DIFF="0.5" BBK_DIFF_Y="5.2" BBK_EURO="10.692"/>
      <bbk:Obs TIME_PERIOD="1976-03" OBS_VALUE="20.812" BBK_DIFF="0.4" BBK_DIFF_Y="5.1" BBK_EURO="10.641"/>
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      <bbk:Obs TIME_PERIOD="1976-01" OBS_VALUE="20.624" BBK_DIFF="0.6" BBK_DIFF_Y="4.8" BBK_EURO="10.545"/>
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      <bbk:Obs TIME_PERIOD="1975-09" OBS_VALUE="20.186" BBK_DIFF="0.5" BBK_DIFF_Y="4.5" BBK_EURO="10.321"/>
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      <bbk:Obs TIME_PERIOD="1975-07" OBS_VALUE="20.032" BBK_DIFF="0.1" BBK_DIFF_Y="4.3" BBK_EURO="10.242"/>
      <bbk:Obs TIME_PERIOD="1975-06" OBS_VALUE="20.014" BBK_DIFF="0.4" BBK_DIFF_Y="4.7" BBK_EURO="10.233"/>
      <bbk:Obs TIME_PERIOD="1975-05" OBS_VALUE="19.935" BBK_DIFF="0.3" BBK_DIFF_Y="4.8" BBK_EURO="10.193"/>
      <bbk:Obs TIME_PERIOD="1975-04" OBS_VALUE="19.883" BBK_DIFF="0.4" BBK_DIFF_Y="4.8" BBK_EURO="10.166"/>
      <bbk:Obs TIME_PERIOD="1975-03" OBS_VALUE="19.799" BBK_DIFF="0.2" BBK_DIFF_Y="4.7" BBK_EURO="10.123"/>
      <bbk:Obs TIME_PERIOD="1975-02" OBS_VALUE="19.761" BBK_DIFF="0.4" BBK_DIFF_Y="4.6" BBK_EURO="10.104"/>
      <bbk:Obs TIME_PERIOD="1975-01" OBS_VALUE="19.686" BBK_DIFF="0.6" BBK_DIFF_Y="4.5" BBK_EURO="10.065"/>
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      <bbk:Obs TIME_PERIOD="1974-11" OBS_VALUE="19.501" BBK_DIFF="0.5" BBK_DIFF_Y="4.7" BBK_EURO="9.971"/>
      <bbk:Obs TIME_PERIOD="1974-10" OBS_VALUE="19.404" BBK_DIFF="0.4" BBK_DIFF_Y="4.5" BBK_EURO="9.921"/>
      <bbk:Obs TIME_PERIOD="1974-09" OBS_VALUE="19.324" BBK_DIFF="0.4" BBK_DIFF_Y="4.5" BBK_EURO="9.88"/>
      <bbk:Obs TIME_PERIOD="1974-08" OBS_VALUE="19.242" BBK_DIFF="0.2" BBK_DIFF_Y="4.3" BBK_EURO="9.838"/>
      <bbk:Obs TIME_PERIOD="1974-07" OBS_VALUE="19.197" BBK_DIFF="0.4" BBK_DIFF_Y="4.3" BBK_EURO="9.815"/>
      <bbk:Obs TIME_PERIOD="1974-06" OBS_VALUE="19.115" BBK_DIFF="0.5" BBK_DIFF_Y="4.1" BBK_EURO="9.773"/>
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      <bbk:Obs TIME_PERIOD="1974-04" OBS_VALUE="18.976" BBK_DIFF="0.3" BBK_DIFF_Y="3.9" BBK_EURO="9.702"/>
      <bbk:Obs TIME_PERIOD="1974-03" OBS_VALUE="18.916" BBK_DIFF="0.1" BBK_DIFF_Y="3.7" BBK_EURO="9.672"/>
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      <bbk:Obs TIME_PERIOD="1974-01" OBS_VALUE="18.837" BBK_DIFF="0.7" BBK_DIFF_Y="3.9" BBK_EURO="9.631"/>
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      <bbk:Obs TIME_PERIOD="1973-10" OBS_VALUE="18.562" BBK_DIFF="0.4" BBK_DIFF_Y="3.3" BBK_EURO="9.491"/>
      <bbk:Obs TIME_PERIOD="1973-09" OBS_VALUE="18.491" BBK_DIFF="0.2" BBK_DIFF_Y="3.1" BBK_EURO="9.454"/>
      <bbk:Obs TIME_PERIOD="1973-08" OBS_VALUE="18.448" BBK_DIFF="0.3" BBK_DIFF_Y="3.2" BBK_EURO="9.432"/>
      <bbk:Obs TIME_PERIOD="1973-07" OBS_VALUE="18.401" BBK_DIFF="0.2" BBK_DIFF_Y="3.0" BBK_EURO="9.408"/>
      <bbk:Obs TIME_PERIOD="1973-06" OBS_VALUE="18.367" BBK_DIFF="0.3" BBK_DIFF_Y="3.1" BBK_EURO="9.391"/>
      <bbk:Obs TIME_PERIOD="1973-05" OBS_VALUE="18.307" BBK_DIFF="0.2" BBK_DIFF_Y="3.2" BBK_EURO="9.36"/>
      <bbk:Obs TIME_PERIOD="1973-04" OBS_VALUE="18.272" BBK_DIFF="0.2" BBK_DIFF_Y="3.3" BBK_EURO="9.342"/>
      <bbk:Obs TIME_PERIOD="1973-03" OBS_VALUE="18.238" BBK_DIFF="0.4" BBK_DIFF_Y="3.3" BBK_EURO="9.325"/>
      <bbk:Obs TIME_PERIOD="1973-02" OBS_VALUE="18.158" BBK_DIFF="0.2" BBK_DIFF_Y="3.4" BBK_EURO="9.284"/>
      <bbk:Obs TIME_PERIOD="1973-01" OBS_VALUE="18.123" BBK_DIFF="0.4" BBK_DIFF_Y="3.5" BBK_EURO="9.266"/>
      <bbk:Obs TIME_PERIOD="1972-12" OBS_VALUE="18.048" BBK_DIFF="0.4" BBK_DIFF_Y="3.0" BBK_EURO="9.228"/>
      <bbk:Obs TIME_PERIOD="1972-11" OBS_VALUE="17.983" BBK_DIFF="0.1" BBK_DIFF_Y="3.3" BBK_EURO="9.195"/>
      <bbk:Obs TIME_PERIOD="1972-10" OBS_VALUE="17.964" BBK_DIFF="0.2" BBK_DIFF_Y="3.7" BBK_EURO="9.185"/>
      <bbk:Obs TIME_PERIOD="1972-09" OBS_VALUE="17.933" BBK_DIFF="0.3" BBK_DIFF_Y="4.4" BBK_EURO="9.169"/>
      <bbk:Obs TIME_PERIOD="1972-08" OBS_VALUE="17.872" BBK_DIFF="0.1" BBK_DIFF_Y="4.5" BBK_EURO="9.138"/>
      <bbk:Obs TIME_PERIOD="1972-07" OBS_VALUE="17.857" BBK_DIFF="0.2" BBK_DIFF_Y="4.8" BBK_EURO="9.13"/>
      <bbk:Obs TIME_PERIOD="1972-06" OBS_VALUE="17.816" BBK_DIFF="0.5" BBK_DIFF_Y="5.0" BBK_EURO="9.109"/>
      <bbk:Obs TIME_PERIOD="1972-05" OBS_VALUE="17.733" BBK_DIFF="0.2" BBK_DIFF_Y="4.6" BBK_EURO="9.067"/>
      <bbk:Obs TIME_PERIOD="1972-04" OBS_VALUE="17.69" BBK_DIFF="0.2" BBK_DIFF_Y="4.6" BBK_EURO="9.045"/>
      <bbk:Obs TIME_PERIOD="1972-03" OBS_VALUE="17.649" BBK_DIFF="0.5" BBK_DIFF_Y="4.6" BBK_EURO="9.024"/>
      <bbk:Obs TIME_PERIOD="1972-02" OBS_VALUE="17.56" BBK_DIFF="0.2" BBK_DIFF_Y="4.2" BBK_EURO="8.978"/>
      <bbk:Obs TIME_PERIOD="1972-01" OBS_VALUE="17.518" BBK_DIFF="-0.1" BBK_DIFF_Y="4.2" BBK_EURO="8.957"/>
      <bbk:Obs TIME_PERIOD="1971-12" OBS_VALUE="17.53" BBK_DIFF="0.7" BBK_DIFF_Y="4.4" BBK_EURO="8.963"/>
      <bbk:Obs TIME_PERIOD="1971-11" OBS_VALUE="17.416" BBK_DIFF="0.6" BBK_DIFF_Y="4.0" BBK_EURO="8.905"/>
      <bbk:Obs TIME_PERIOD="1971-10" OBS_VALUE="17.318" BBK_DIFF="0.9" BBK_DIFF_Y="3.9" BBK_EURO="8.855"/>
      <bbk:Obs TIME_PERIOD="1971-09" OBS_VALUE="17.172" BBK_DIFF="0.4" BBK_DIFF_Y="3.4" BBK_EURO="8.78"/>
      <bbk:Obs TIME_PERIOD="1971-08" OBS_VALUE="17.105" BBK_DIFF="0.4" BBK_DIFF_Y="3.8" BBK_EURO="8.746"/>
      <bbk:Obs TIME_PERIOD="1971-07" OBS_VALUE="17.037" BBK_DIFF="0.4" BBK_DIFF_Y="4.2" BBK_EURO="8.711"/>
      <bbk:Obs TIME_PERIOD="1971-06" OBS_VALUE="16.962" BBK_DIFF="0.1" BBK_DIFF_Y="4.1" BBK_EURO="8.673"/>
      <bbk:Obs TIME_PERIOD="1971-05" OBS_VALUE="16.949" BBK_DIFF="0.2" BBK_DIFF_Y="4.1" BBK_EURO="8.666"/>
      <bbk:Obs TIME_PERIOD="1971-04" OBS_VALUE="16.913" BBK_DIFF="0.2" BBK_DIFF_Y="4.0" BBK_EURO="8.647"/>
      <bbk:Obs TIME_PERIOD="1971-03" OBS_VALUE="16.872" BBK_DIFF="0.1" BBK_DIFF_Y="4.5" BBK_EURO="8.627"/>
      <bbk:Obs TIME_PERIOD="1971-02" OBS_VALUE="16.849" BBK_DIFF="0.2" BBK_DIFF_Y="4.6" BBK_EURO="8.615"/>
      <bbk:Obs TIME_PERIOD="1971-01" OBS_VALUE="16.816" BBK_DIFF="0.1" BBK_DIFF_Y="4.4" BBK_EURO="8.598"/>
      <bbk:Obs TIME_PERIOD="1970-12" OBS_VALUE="16.799" BBK_DIFF="0.3" BBK_DIFF_Y="6.5" BBK_EURO="8.589"/>
      <bbk:Obs TIME_PERIOD="1970-11" OBS_VALUE="16.744" BBK_DIFF="0.4" BBK_DIFF_Y="6.5" BBK_EURO="8.561"/>
      <bbk:Obs TIME_PERIOD="1970-10" OBS_VALUE="16.675" BBK_DIFF="0.4" BBK_DIFF_Y="6.1" BBK_EURO="8.526"/>
      <bbk:Obs TIME_PERIOD="1970-09" OBS_VALUE="16.61" BBK_DIFF="0.8" BBK_DIFF_Y="6.0" BBK_EURO="8.493"/>
      <bbk:Obs TIME_PERIOD="1970-08" OBS_VALUE="16.475" BBK_DIFF="0.7" BBK_DIFF_Y="5.4" BBK_EURO="8.424"/>
      <bbk:Obs TIME_PERIOD="1970-07" OBS_VALUE="16.358" BBK_DIFF="0.4" BBK_DIFF_Y="4.9" BBK_EURO="8.364"/>
      <bbk:Obs TIME_PERIOD="1970-06" OBS_VALUE="16.3" BBK_DIFF="0.1" BBK_DIFF_Y="4.7" BBK_EURO="8.334"/>
      <bbk:Obs TIME_PERIOD="1970-05" OBS_VALUE="16.286" BBK_DIFF="0.2" BBK_DIFF_Y="4.9" BBK_EURO="8.327"/>
      <bbk:Obs TIME_PERIOD="1970-04" OBS_VALUE="16.257" BBK_DIFF="0.7" BBK_DIFF_Y="4.9" BBK_EURO="8.312"/>
      <bbk:Obs TIME_PERIOD="1970-03" OBS_VALUE="16.152" BBK_DIFF="0.3" BBK_DIFF_Y="4.4" BBK_EURO="8.258"/>
      <bbk:Obs TIME_PERIOD="1970-02" OBS_VALUE="16.111" BBK_DIFF="0.0" BBK_DIFF_Y="4.4" BBK_EURO="8.237"/>
      <bbk:Obs TIME_PERIOD="1970-01" OBS_VALUE="16.108" BBK_DIFF="2.2" BBK_DIFF_Y="4.6" BBK_EURO="8.236"/>
      <bbk:Obs TIME_PERIOD="1969-12" OBS_VALUE="15.768" BBK_DIFF="0.3" BBK_DIFF_Y="2.7" BBK_EURO="8.062"/>
      <bbk:Obs TIME_PERIOD="1969-11" OBS_VALUE="15.721" BBK_DIFF="0.0" BBK_EURO="8.038"/>
      <bbk:Obs TIME_PERIOD="1969-10" OBS_VALUE="15.72" BBK_DIFF="0.3" BBK_EURO="8.038"/>
      <bbk:Obs TIME_PERIOD="1969-09" OBS_VALUE="15.673" BBK_DIFF="0.2" BBK_EURO="8.013"/>
      <bbk:Obs TIME_PERIOD="1969-08" OBS_VALUE="15.637" BBK_DIFF="0.2" BBK_EURO="7.995"/>
      <bbk:Obs TIME_PERIOD="1969-07" OBS_VALUE="15.599" BBK_DIFF="0.2" BBK_EURO="7.976"/>
      <bbk:Obs TIME_PERIOD="1969-06" OBS_VALUE="15.562" BBK_DIFF="0.2" BBK_EURO="7.957"/>
      <bbk:Obs TIME_PERIOD="1969-05" OBS_VALUE="15.53" BBK_DIFF="0.2" BBK_EURO="7.94"/>
      <bbk:Obs TIME_PERIOD="1969-04" OBS_VALUE="15.498" BBK_DIFF="0.2" BBK_EURO="7.924"/>
      <bbk:Obs TIME_PERIOD="1969-03" OBS_VALUE="15.474" BBK_DIFF="0.3" BBK_EURO="7.912"/>
      <bbk:Obs TIME_PERIOD="1969-02" OBS_VALUE="15.427" BBK_DIFF="0.2" BBK_EURO="7.888"/>
      <bbk:Obs TIME_PERIOD="1969-01" OBS_VALUE="15.402" BBK_DIFF="0.3" BBK_EURO="7.875"/>
      <bbk:Obs TIME_PERIOD="1968-12" OBS_VALUE="15.35" BBK_EURO="7.848"/>
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  </bbk:DataSet>
</CompactData>
