1967 01 99.99 -99.99   9.80 
1967 02 99.99 -99.99  15.80 
1967 03 99.99 -99.99  16.40 
1967 04 99.99 -99.99  21.90 
1967 05 99.99 -99.99  26.80 
1967 06 99.99 -99.99  30.80 
1967 07 99.99 -99.99  29.60 
1967 08 99.99 -99.99  29.20 
1967 09 99.99 -99.99  28.30 
1967 10 99.99 -99.99  22.10 
1967 11 99.99 -99.99  17.90 
1967 12 99.99 -99.99  10.30 
1968 01 99.99 -99.99  10.00 
1968 02 99.99 -99.99  10.30 
1968 03 99.99 -99.99  17.79 
1968 04 99.99 -99.99  22.90 
1968 05 99.99 -99.99  25.50 
1968 06 99.99 -99.99  32.20 
1968 07 99.99 -99.99  31.50 
1968 08 99.99 -99.99  30.40 
1968 09 99.99 -99.99  27.20 
1968 10 99.99 -99.99  21.30 
1968 11 99.99 -99.99  17.10 
1968 12 99.99 -99.99  12.20 
1969 01 99.99 -99.99  11.20 
1969 02 99.99 -99.99  11.90 
1969 03 99.99 -99.99  20.80 
1969 04 99.99 -99.99  23.70 
1969 05 99.99 -99.99  27.30 
1969 06 99.99 -99.99  31.50 
1969 07 99.99 -99.99  31.90 
1969 08 99.99 -99.99  30.40 
1969 09 99.99 -99.99  26.90 
1969 10 99.99 -99.99  23.70 
1969 11 99.99 -99.99  16.40 
1969 12 99.99 -99.99  13.70 
1970 01 99.99 -99.99  10.10 
1970 02 99.99 -99.99  13.70 
1970 03 99.99 -99.99  16.70 
1970 04 99.99 -99.99  24.50 
1970 05 99.99 -99.99  29.50 
1970 06 99.99 -99.99  30.70 
1970 07 99.99 -99.99  27.80 
1970 08 99.99 -99.99  28.40 
1970 09 99.99 -99.99  26.40 
1970 10 99.99 -99.99  22.60 
1970 11 99.99 -99.99  16.70 
1970 12 99.99 -99.99  12.10 
1971 01 99.99 -99.99   8.89 
1971 02 99.99 -99.99  12.60 
1971 03 99.99 -99.99  17.60 
1971 04 99.99 -99.99  25.40 
1971 05 99.99 -99.99  29.20 
1971 06 99.99 -99.99  32.09 
1971 07 99.99 -99.99  30.80 
1971 08 99.99 -99.99  29.90 
1971 09 99.99 -99.99  25.90 
1971 10 99.99 -99.99  20.90 
1971 11 99.99 -99.99  16.50 
1971 12 99.99 -99.99  12.60 
1972 01 99.99 -99.99  10.40 
1972 02 99.99 -99.99   7.10 
1972 03 99.99 -99.99  17.40 
1972 04 99.99 -99.99  20.60 
1972 05 99.99 -99.99  26.60 
1972 06 99.99 -99.99  30.60 
1972 07 99.99 -99.99  30.60 
1972 08 99.99 -99.99  29.60 
1972 09 99.99 -99.99  26.60 
1972 10 99.99 -99.99  20.60 
1972 11 99.99 -99.99  16.79 
1972 12 99.99 -99.99  10.50 
1973 01 99.99 -99.99   7.90 
1973 02 99.99 -99.99  13.70 
1973 03 99.99 -99.99  17.79 
1973 04 99.99 -99.99  23.80 
1973 05 99.99 -99.99  29.30 
1973 06 99.99 -99.99  32.59 
1973 07 99.99 -99.99  29.90 
1973 08 99.99 -99.99  29.50 
1973 09 99.99 -99.99  28.00 
1973 10 99.99 -99.99  21.50 
1973 11 99.99 -99.99  16.90 
1973 12 99.99 -99.99  10.30 
1974 01 99.99 -99.99   9.89 
1974 02 99.99 -99.99   9.30 
1974 03 99.99 -99.99  19.70 
1974 04 99.99 -99.99  23.50 
1974 05 99.99 -99.99  28.00 
1974 06 99.99 -99.99  30.90 
1974 07 99.99 -99.99  31.20 
1974 08 99.99 -99.99  30.10 
1974 10 99.99 -99.99  15.80 
1974 11 99.99 -99.99  14.90 
1974 12 99.99 -99.99   8.10 
2003 08 37.43  24.45  30.94 
2005 10 30.31  17.95  24.13 
2006 07 36.68  26.54  31.61 
2006 08 32.70  24.00  28.35 
2006 10 31.22  19.19  25.20 
2007 10 28.54  14.95  21.74 
2007 11 26.19  10.02  18.10 
2007 12 18.15   6.29  12.21 
2008 01 13.17   3.83   8.50 
2008 02 19.59   3.78  11.68 
2008 06 37.86  26.50  32.18 
2008 07 36.41  25.92  31.16 
2008 08 33.46  24.14  28.80 
2008 09 33.56  22.42  27.99 
2008 10 31.09  19.02  25.05 
2008 11 24.68  10.46  17.57 
2009 01 15.63   6.02  10.82 
2009 02 21.14   9.02  15.08 
2009 03 24.87  12.19  18.53 
2009 04 28.18  16.61  22.39 
2009 05 36.30  25.23  30.76 
2009 08 36.11  24.93  30.52 
2009 09 34.48  23.09  28.78 
2009 10 28.80  15.55  22.17 
2009 12 18.26   6.16  12.21 
2010 01 19.42   4.98  12.20 
2010 03 28.78  15.90  22.34 
2010 04 32.83  19.69  26.26 
2010 05 35.95  24.21  30.08 
2010 06 35.98  24.07  30.02 
2010 08 33.43  24.07  28.75 
2010 09 32.72  22.97  27.84 
2011 05 36.05  25.43  30.74 
2011 06 38.93  29.02  33.98 
2011 08 33.48  24.50  28.99 
2011 10 29.50  17.33  23.41 
2011 12 20.02   3.53  11.77 
2012 01 15.87   3.26   9.56 
2012 02 18.54   4.78  11.66 
2012 04 28.52  18.70  23.61 
2012 05 34.75  23.40  29.07 
2012 06 36.41  25.10  30.75 
2012 07 38.27  26.82  32.54 
2012 09 31.37  21.61  26.49 
2012 10 29.28  14.82  22.05 
2013 01 18.68   4.41  11.54 
2013 02 18.15   5.96  12.05 
2013 04 26.70  18.00  22.35 
2013 05 34.74  24.35  29.54 
2013 07 37.08  25.81  31.44 
