19800112      73.0
       19800118      67.4
       19800126      78.4
       19810115      79.7
       19820103      87.6
       19820104      85.1
       19820112      77.3
       19820123      84.8
       19820124      93.2
       19820125      77.9
       19850108      66.3
       19850117      82.5
       19850118      66.9
       19860106      66.6
       19860108      76.2
       19880110      61.6
       19900103      65.6
       19910114      65.0
       19910115      68.3
       19910116      60.6
       19910126      76.7
       19910127      72.4
       19910128      68.6
       19920117      63.5
       19920122      85.4
       19920123      75.2
       19940110      76.5
       19940112      66.8
       19940114      71.8
       19940115      62.8
       19960101      62.5
       19970104      79.5
       19970105      68.5
       19980109      69.8
       19980110      69.6
       19980117      66.3
       19990102      71.4
       19990106      78.0
       19990107      68.0
       19990115      61.6
       20000101      86.6
       20000102      88.3
       20000103      85.9
       20000126      62.2
       20020108      78.9
       20020109      65.4
       20020119      60.4
       20030128      86.4
       20030129      81.7
       20030130      84.7
       20030131      61.7
       20040109      72.3
       20040112      61.2
       20050105      68.0
       20050106      65.5
       20050117      77.5
       20050118      66.9
       20050121      71.1
       20060105      69.6
       20060106      75.8
       20060130      82.5
       20080121      61.1
       20090120      60.5
       20090121      81.1