1973 12 99.99  18.25 -99.99 
1974 08 99.99  11.41 -99.99 
1974 09 99.99  13.59 -99.99 
1976 02 99.99  17.83 -99.99 
1976 03 99.99  17.52 -99.99 
1977 05 99.99  14.27 -99.99 
1977 06 99.99  13.68 -99.99 
1977 12 99.99  17.59 -99.99 
1978 04 29.28 -99.99 -99.99 
1978 07 99.99  13.38 -99.99 
1978 12 99.99  17.96 -99.99 
1979 01 99.99  16.90 -99.99 
1979 02 99.99  18.58 -99.99 
1979 03 99.99  17.52 -99.99 
1979 04 99.99  15.14 -99.99 
1979 05 99.99  14.21 -99.99 
1979 06 99.99  12.14 -99.99 
1979 07 99.99  10.70 -99.99 
1979 08 99.99  13.93 -99.99 
1979 09 99.99  14.10 -99.99 
1979 10 99.99  16.93 -99.99 
1979 11 99.99  16.41 -99.99 
1979 12 99.99  18.48 -99.99 
1980 01 99.99  18.12 -99.99 
1980 02 30.09  18.42  24.25 
1980 03 32.25  19.27  25.76 
1980 04 99.99  17.10 -99.99 
1980 05 99.99  15.23 -99.99 
1980 06 99.99  11.96 -99.99 
1980 07 99.99  13.58 -99.99 
1980 08 99.99  14.50 -99.99 
1980 09 99.99  13.20 -99.99 
1980 10 99.99  16.70 -99.99 
1980 11 99.99  17.12 -99.99 
1980 12 99.99  19.08 -99.99 
1981 01 99.99  19.20 -99.99 
1981 02 99.99  19.64 -99.99 
1981 03 31.74  18.87  25.30 
1981 04 99.99  16.17 -99.99 
1981 05 99.99  15.53 -99.99 
1981 06 99.99  12.62 -99.99 
1981 07 99.99  11.10 -99.99 
1981 08 99.99  13.57 -99.99 
1981 09 99.99  15.29 -99.99 
1981 11 99.99  18.52 -99.99 
1981 12 99.99  17.95 -99.99 
1982 03 99.99  18.62 -99.99 
1982 05 99.99  13.16 -99.99 
1982 06 99.99  14.14 -99.99 
1982 07 99.99  14.10 -99.99 
1982 08 99.99  14.80 -99.99 
1999 06 23.15  14.67  18.91 
1999 07 26.04  16.06  21.05 
1999 08 28.12  15.92  22.02 
2000 01 29.54  20.77  25.15 
2000 02 27.63  20.93  24.28 
2000 04 28.86  19.18  24.02 
2000 05 25.15  16.03  20.59 
2001 02 29.48  21.87  25.67 
2001 08 27.16  17.07  22.11 
2001 09 27.72  17.14  22.43 
2001 10 28.82  18.33  23.57 
2001 11 29.25  19.95  24.60 
2001 12 28.45  19.92  24.18 
2007 09 30.51  18.20  24.35 
2007 10 30.72  18.71  24.72 
2007 11 28.15  18.26  23.20 
2008 01 26.94  19.74  23.34 
2008 11 29.10  18.24  23.67 
2009 01 27.27  19.67  23.47 
2009 02 29.27  20.92  25.09 
2009 03 29.50  20.50  25.00 
2009 04 28.14  18.00  23.07 
2009 05 26.24  16.90  21.57 
2009 06 22.59  13.63  18.11 
2009 08 25.44  15.37  20.40 
2009 09 26.96  17.85  22.40 
2009 12 28.79  20.20  24.50 
2010 01 28.57  20.82  24.69 
2010 02 30.52  21.41  25.96 
2010 03 29.54  20.45  25.00 
2010 04 26.92  18.27  22.59 
2010 05 24.41  15.48  19.94 
2010 06 25.04  14.52  19.78 
2010 08 27.64  14.82  21.23 
2010 11 29.50  18.77  24.13 
2010 12 29.25  20.29  24.77 
2011 01 29.96  20.78  25.37 
2011 02 31.61  22.13  26.87 
2011 03 27.38  21.08  24.23 
2011 04 29.14  19.93  24.53 
2011 06 24.48  14.37  19.42 
2011 08 28.93  16.90  22.91 
2011 10 29.14  19.20  24.17 
2011 11 29.72  18.28  24.00 
2012 01 28.61  19.95  24.28 
2012 02 31.52  22.48  27.00 
2012 04 29.58  20.23  24.90 
2012 06 24.73  17.27  21.00 
2012 07 26.04  16.45  21.25 
2012 09 31.76  19.48  25.62 
2013 02 30.46  21.85  26.15 
2013 03 29.42  21.29  25.35 
2013 04 28.19  19.21  23.70 
2013 05 26.60  18.43  22.51 
2013 06 25.59  17.79  21.69 
2013 07 25.23  16.00  20.61 
2013 08 27.93  15.97  21.95 
2013 09 28.90  18.27  23.58 
2013 10 29.33  19.40  24.36 
2013 11 30.11  20.67  25.39 
2013 12 32.09  22.07  27.08 
