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      <bbk:Obs TIME_PERIOD="1977-03" OBS_VALUE="22.849" BBK_DIFF="1.9" BBK_DIFF_Y="18.5" BBK_EURO="11.683"/>
      <bbk:Obs TIME_PERIOD="1977-02" OBS_VALUE="22.419" BBK_DIFF="2.9" BBK_DIFF_Y="19.0" BBK_EURO="11.463"/>
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      <bbk:Obs TIME_PERIOD="1976-08" OBS_VALUE="20.391" BBK_DIFF="1.5" BBK_DIFF_Y="21.3" BBK_EURO="10.426"/>
      <bbk:Obs TIME_PERIOD="1976-07" OBS_VALUE="20.086" BBK_DIFF="1.7" BBK_DIFF_Y="21.6" BBK_EURO="10.27"/>
      <bbk:Obs TIME_PERIOD="1976-06" OBS_VALUE="19.753" BBK_DIFF="1.3" BBK_DIFF_Y="23.3" BBK_EURO="10.1"/>
      <bbk:Obs TIME_PERIOD="1976-05" OBS_VALUE="19.508" BBK_DIFF="-1.0" BBK_DIFF_Y="24.6" BBK_EURO="9.974"/>
      <bbk:Obs TIME_PERIOD="1976-04" OBS_VALUE="19.708" BBK_DIFF="2.2" BBK_DIFF_Y="28.8" BBK_EURO="10.077"/>
      <bbk:Obs TIME_PERIOD="1976-03" OBS_VALUE="19.28" BBK_DIFF="2.4" BBK_DIFF_Y="29.5" BBK_EURO="9.858"/>
      <bbk:Obs TIME_PERIOD="1976-02" OBS_VALUE="18.832" BBK_DIFF="1.7" BBK_DIFF_Y="29.7" BBK_EURO="9.629"/>
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      <bbk:Obs TIME_PERIOD="1975-08" OBS_VALUE="16.809" BBK_DIFF="1.7" BBK_DIFF_Y="28.9" BBK_EURO="8.594"/>
      <bbk:Obs TIME_PERIOD="1975-07" OBS_VALUE="16.521" BBK_DIFF="3.1" BBK_DIFF_Y="29.8" BBK_EURO="8.447"/>
      <bbk:Obs TIME_PERIOD="1975-06" OBS_VALUE="16.022" BBK_DIFF="2.3" BBK_DIFF_Y="28.9" BBK_EURO="8.192"/>
      <bbk:Obs TIME_PERIOD="1975-05" OBS_VALUE="15.659" BBK_DIFF="2.3" BBK_DIFF_Y="28.4" BBK_EURO="8.006"/>
      <bbk:Obs TIME_PERIOD="1975-04" OBS_VALUE="15.3" BBK_DIFF="2.7" BBK_DIFF_Y="28.6" BBK_EURO="7.823"/>
      <bbk:Obs TIME_PERIOD="1975-03" OBS_VALUE="14.893" BBK_DIFF="2.5" BBK_DIFF_Y="28.8" BBK_EURO="7.615"/>
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      <bbk:Obs TIME_PERIOD="1975-01" OBS_VALUE="14.246" BBK_DIFF="2.3" BBK_DIFF_Y="29.2" BBK_EURO="7.284"/>
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      <bbk:Obs TIME_PERIOD="1974-11" OBS_VALUE="13.609" BBK_DIFF="1.7" BBK_DIFF_Y="29.4" BBK_EURO="6.958"/>
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      <bbk:Obs TIME_PERIOD="1974-04" OBS_VALUE="11.896" BBK_DIFF="2.9" BBK_DIFF_Y="38.4" BBK_EURO="6.082"/>
      <bbk:Obs TIME_PERIOD="1974-03" OBS_VALUE="11.559" BBK_DIFF="2.7" BBK_DIFF_Y="35.9" BBK_EURO="5.91"/>
      <bbk:Obs TIME_PERIOD="1974-02" OBS_VALUE="11.254" BBK_DIFF="2.0" BBK_DIFF_Y="34.7" BBK_EURO="5.754"/>
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      <bbk:Obs TIME_PERIOD="1973-11" OBS_VALUE="10.517" BBK_DIFF="1.5" BBK_DIFF_Y="40.5" BBK_EURO="5.377"/>
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      <bbk:Obs TIME_PERIOD="1973-09" OBS_VALUE="10.054" BBK_DIFF="2.6" BBK_DIFF_Y="41.3" BBK_EURO="5.141"/>
      <bbk:Obs TIME_PERIOD="1973-08" OBS_VALUE="9.801" BBK_DIFF="2.2" BBK_DIFF_Y="40.4" BBK_EURO="5.011"/>
      <bbk:Obs TIME_PERIOD="1973-07" OBS_VALUE="9.586" BBK_DIFF="3.3" BBK_DIFF_Y="40.5" BBK_EURO="4.901"/>
      <bbk:Obs TIME_PERIOD="1973-06" OBS_VALUE="9.277" BBK_DIFF="3.7" BBK_DIFF_Y="32.4" BBK_EURO="4.743"/>
      <bbk:Obs TIME_PERIOD="1973-05" OBS_VALUE="8.95" BBK_DIFF="4.1" BBK_DIFF_Y="32.0" BBK_EURO="4.576"/>
      <bbk:Obs TIME_PERIOD="1973-04" OBS_VALUE="8.596" BBK_DIFF="1.0" BBK_DIFF_Y="32.2" BBK_EURO="4.395"/>
      <bbk:Obs TIME_PERIOD="1973-03" OBS_VALUE="8.507" BBK_DIFF="1.8" BBK_DIFF_Y="36.4" BBK_EURO="4.35"/>
      <bbk:Obs TIME_PERIOD="1973-02" OBS_VALUE="8.354" BBK_DIFF="2.9" BBK_DIFF_Y="36.1" BBK_EURO="4.271"/>
      <bbk:Obs TIME_PERIOD="1973-01" OBS_VALUE="8.118" BBK_DIFF="3.0" BBK_DIFF_Y="36.7" BBK_EURO="4.151"/>
      <bbk:Obs TIME_PERIOD="1972-12" OBS_VALUE="7.881" BBK_DIFF="5.3" BBK_DIFF_Y="33.7" BBK_EURO="4.029"/>
      <bbk:Obs TIME_PERIOD="1972-11" OBS_VALUE="7.485" BBK_DIFF="3.0" BBK_DIFF_Y="31.6" BBK_EURO="3.827"/>
      <bbk:Obs TIME_PERIOD="1972-10" OBS_VALUE="7.268" BBK_DIFF="2.2" BBK_DIFF_Y="29.7" BBK_EURO="3.716"/>
      <bbk:Obs TIME_PERIOD="1972-09" OBS_VALUE="7.113" BBK_DIFF="1.9" BBK_DIFF_Y="28.5" BBK_EURO="3.637"/>
      <bbk:Obs TIME_PERIOD="1972-08" OBS_VALUE="6.982" BBK_DIFF="2.4" BBK_DIFF_Y="27.7" BBK_EURO="3.57"/>
      <bbk:Obs TIME_PERIOD="1972-07" OBS_VALUE="6.821" BBK_DIFF="-2.6" BBK_DIFF_Y="26.7" BBK_EURO="3.488"/>
      <bbk:Obs TIME_PERIOD="1972-06" OBS_VALUE="7.005" BBK_DIFF="3.3" BBK_DIFF_Y="32.8" BBK_EURO="3.582"/>
      <bbk:Obs TIME_PERIOD="1972-05" OBS_VALUE="6.778" BBK_DIFF="4.2" BBK_DIFF_Y="31.8" BBK_EURO="3.466"/>
      <bbk:Obs TIME_PERIOD="1972-04" OBS_VALUE="6.503" BBK_DIFF="4.2" BBK_DIFF_Y="27.9" BBK_EURO="3.325"/>
      <bbk:Obs TIME_PERIOD="1972-03" OBS_VALUE="6.238" BBK_DIFF="1.6" BBK_DIFF_Y="25.0" BBK_EURO="3.189"/>
      <bbk:Obs TIME_PERIOD="1972-02" OBS_VALUE="6.139" BBK_DIFF="3.4" BBK_DIFF_Y="24.2" BBK_EURO="3.139"/>
      <bbk:Obs TIME_PERIOD="1972-01" OBS_VALUE="5.939" BBK_DIFF="0.7" BBK_DIFF_Y="20.5" BBK_EURO="3.037"/>
      <bbk:Obs TIME_PERIOD="1971-12" OBS_VALUE="5.895" BBK_DIFF="3.6" BBK_DIFF_Y="21.1" BBK_EURO="3.014"/>
      <bbk:Obs TIME_PERIOD="1971-11" OBS_VALUE="5.688" BBK_DIFF="1.5" BBK_DIFF_Y="17.7" BBK_EURO="2.908"/>
      <bbk:Obs TIME_PERIOD="1971-10" OBS_VALUE="5.602" BBK_DIFF="1.2" BBK_DIFF_Y="18.8" BBK_EURO="2.864"/>
      <bbk:Obs TIME_PERIOD="1971-09" OBS_VALUE="5.536" BBK_DIFF="1.3" BBK_DIFF_Y="20.7" BBK_EURO="2.831"/>
      <bbk:Obs TIME_PERIOD="1971-08" OBS_VALUE="5.466" BBK_DIFF="1.5" BBK_DIFF_Y="20.3" BBK_EURO="2.795"/>
      <bbk:Obs TIME_PERIOD="1971-07" OBS_VALUE="5.383" BBK_DIFF="2.1" BBK_DIFF_Y="17.7" BBK_EURO="2.752"/>
      <bbk:Obs TIME_PERIOD="1971-06" OBS_VALUE="5.274" BBK_DIFF="2.5" BBK_DIFF_Y="20.8" BBK_EURO="2.697"/>
      <bbk:Obs TIME_PERIOD="1971-05" OBS_VALUE="5.144" BBK_DIFF="1.2" BBK_DIFF_Y="19.2" BBK_EURO="2.63"/>
      <bbk:Obs TIME_PERIOD="1971-04" OBS_VALUE="5.084" BBK_DIFF="1.9" BBK_DIFF_Y="20.0" BBK_EURO="2.599"/>
      <bbk:Obs TIME_PERIOD="1971-03" OBS_VALUE="4.99" BBK_DIFF="1.0" BBK_DIFF_Y="18.3" BBK_EURO="2.551"/>
      <bbk:Obs TIME_PERIOD="1971-02" OBS_VALUE="4.941" BBK_DIFF="0.2" BBK_DIFF_Y="18.3" BBK_EURO="2.526"/>
      <bbk:Obs TIME_PERIOD="1971-01" OBS_VALUE="4.929" BBK_DIFF="1.3" BBK_DIFF_Y="19.8" BBK_EURO="2.52"/>
      <bbk:Obs TIME_PERIOD="1970-12" OBS_VALUE="4.868" BBK_DIFF="0.7" BBK_DIFF_Y="19.9" BBK_EURO="2.489"/>
      <bbk:Obs TIME_PERIOD="1970-11" OBS_VALUE="4.834" BBK_DIFF="2.5" BBK_DIFF_Y="22.5" BBK_EURO="2.472"/>
      <bbk:Obs TIME_PERIOD="1970-10" OBS_VALUE="4.715" BBK_DIFF="2.8" BBK_DIFF_Y="19.9" BBK_EURO="2.411"/>
      <bbk:Obs TIME_PERIOD="1970-09" OBS_VALUE="4.588" BBK_DIFF="0.9" BBK_DIFF_Y="17.6" BBK_EURO="2.346"/>
      <bbk:Obs TIME_PERIOD="1970-08" OBS_VALUE="4.545" BBK_DIFF="-0.7" BBK_DIFF_Y="20.0" BBK_EURO="2.324"/>
      <bbk:Obs TIME_PERIOD="1970-07" OBS_VALUE="4.575" BBK_DIFF="4.8" BBK_DIFF_Y="22.2" BBK_EURO="2.339"/>
      <bbk:Obs TIME_PERIOD="1970-06" OBS_VALUE="4.365" BBK_DIFF="1.2" BBK_DIFF_Y="16.7" BBK_EURO="2.232"/>
      <bbk:Obs TIME_PERIOD="1970-05" OBS_VALUE="4.315" BBK_DIFF="1.9" BBK_DIFF_Y="17.4" BBK_EURO="2.206"/>
      <bbk:Obs TIME_PERIOD="1970-04" OBS_VALUE="4.235" BBK_DIFF="0.4" BBK_DIFF_Y="16.5" BBK_EURO="2.165"/>
      <bbk:Obs TIME_PERIOD="1970-03" OBS_VALUE="4.219" BBK_DIFF="1.1" BBK_DIFF_Y="16.3" BBK_EURO="2.157"/>
      <bbk:Obs TIME_PERIOD="1970-02" OBS_VALUE="4.175" BBK_DIFF="1.5" BBK_DIFF_Y="17.3" BBK_EURO="2.135"/>
      <bbk:Obs TIME_PERIOD="1970-01" OBS_VALUE="4.115" BBK_DIFF="1.4" BBK_DIFF_Y="18.6" BBK_EURO="2.104"/>
      <bbk:Obs TIME_PERIOD="1969-12" OBS_VALUE="4.059" BBK_DIFF="2.9" BBK_DIFF_Y="17.9" BBK_EURO="2.075"/>
      <bbk:Obs TIME_PERIOD="1969-11" OBS_VALUE="3.946" BBK_DIFF="0.4" BBK_EURO="2.018"/>
      <bbk:Obs TIME_PERIOD="1969-10" OBS_VALUE="3.932" BBK_DIFF="0.8" BBK_EURO="2.01"/>
      <bbk:Obs TIME_PERIOD="1969-09" OBS_VALUE="3.9" BBK_DIFF="3.0" BBK_EURO="1.994"/>
      <bbk:Obs TIME_PERIOD="1969-08" OBS_VALUE="3.787" BBK_DIFF="1.2" BBK_EURO="1.936"/>
      <bbk:Obs TIME_PERIOD="1969-07" OBS_VALUE="3.743" BBK_DIFF="0.1" BBK_EURO="1.914"/>
      <bbk:Obs TIME_PERIOD="1969-06" OBS_VALUE="3.739" BBK_DIFF="1.7" BBK_EURO="1.912"/>
      <bbk:Obs TIME_PERIOD="1969-05" OBS_VALUE="3.676" BBK_DIFF="1.1" BBK_EURO="1.88"/>
      <bbk:Obs TIME_PERIOD="1969-04" OBS_VALUE="3.636" BBK_DIFF="0.2" BBK_EURO="1.859"/>
      <bbk:Obs TIME_PERIOD="1969-03" OBS_VALUE="3.628" BBK_DIFF="1.9" BBK_EURO="1.855"/>
      <bbk:Obs TIME_PERIOD="1969-02" OBS_VALUE="3.56" BBK_DIFF="2.6" BBK_EURO="1.82"/>
      <bbk:Obs TIME_PERIOD="1969-01" OBS_VALUE="3.471" BBK_DIFF="0.8" BBK_EURO="1.775"/>
      <bbk:Obs TIME_PERIOD="1968-12" OBS_VALUE="3.444" BBK_EURO="1.761"/>
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  </bbk:DataSet>
</CompactData>
