1976 01 99.99 -99.99  25.50 
1976 02 99.99 -99.99  25.40 
1976 03 99.99 -99.99  26.50 
1976 04 99.99 -99.99  29.20 
1976 05 99.99 -99.99  26.50 
1976 06 99.99 -99.99  26.90 
1976 07 99.99 -99.99  25.70 
1976 09 99.99 -99.99  25.80 
1976 10 99.99 -99.99  26.10 
1976 11 99.99 -99.99  26.30 
1977 01 99.99 -99.99  26.20 
1977 03 99.99 -99.99  26.30 
1977 04 99.99 -99.99  26.00 
1977 05 99.99 -99.99  26.40 
1977 06 99.99 -99.99  25.80 
1977 07 99.99 -99.99  26.50 
1977 09 99.99 -99.99  26.60 
1977 10 99.99 -99.99  25.50 
1977 11 99.99 -99.99  26.40 
1977 12 99.99 -99.99  26.50 
1978 01 99.99 -99.99  25.90 
1978 02 99.99 -99.99  26.50 
1978 03 99.99 -99.99  26.10 
1978 04 99.99 -99.99  26.30 
1978 07 99.99 -99.99  25.90 
1978 09 99.99 -99.99  25.70 
1978 10 99.99 -99.99  26.50 
1978 11 99.99 -99.99  26.40 
1978 12 99.99 -99.99  26.30 
1979 01 99.99 -99.99  26.50 
1979 03 99.99 -99.99  26.30 
1979 04 99.99 -99.99  26.70 
1979 05 99.99 -99.99  26.70 
1979 06 99.99 -99.99  26.40 
1979 07 99.99 -99.99  26.70 
1979 08 99.99 -99.99  26.80 
1979 09 99.99 -99.99  26.10 
1979 10 99.99 -99.99  26.70 
1979 11 99.99 -99.99  26.70 
1980 01 99.99 -99.99  26.30 
1980 02 99.99 -99.99  26.20 
1980 03 99.99 -99.99  26.30 
1980 04 99.99 -99.99  26.70 
1980 05 99.99 -99.99  27.00 
1980 06 99.99 -99.99  26.60 
1980 07 99.99 -99.99  26.80 
1980 11 99.99 -99.99  26.70 
1980 12 99.99 -99.99  22.60 
1981 02 99.99 -99.99  27.30 
1981 03 99.99 -99.99  26.20 
1981 04 99.99 -99.99  26.70 
1981 06 99.99 -99.99  26.60 
1981 10 99.99 -99.99  26.80 
1981 12 99.99 -99.99  26.10 
1982 06 99.99 -99.99  26.50 
1982 09 99.99 -99.99  26.30 
1982 11 99.99 -99.99  26.70 
1982 12 99.99 -99.99  26.90 
1983 01 99.99 -99.99  26.00 
1983 02 99.99 -99.99  26.00 
1983 03 99.99 -99.99  26.50 
1983 04 99.99 -99.99  26.80 
1983 05 99.99 -99.99  26.90 
1983 07 99.99 -99.99  26.30 
1983 11 99.99 -99.99  29.70 
1984 03 99.99 -99.99  26.30 
1984 04 99.99 -99.99  26.50 
1984 06 99.99 -99.99  26.50 
1985 01 99.99 -99.99  26.90 
1995 10 31.90  24.30  28.09 
1996 01 30.30  24.20  27.25 
1996 03 31.00  23.80  27.40 
1997 02 29.50  23.90  26.70 
1997 07 30.50  23.90  27.20 
1999 03 30.30  23.10  26.70 
2000 07 31.00  22.10  26.55 
2000 08 30.70  23.60  27.15 
2000 09 31.50  23.80  27.65 
2000 11 30.30  23.20  26.75 
2001 02 29.90  23.90  26.90 
2001 05 31.30  24.10  27.70 
2001 11 31.00  24.00  27.50 
2002 01 30.70  23.80  27.25 
2002 04 31.70  24.00  27.85 
2002 05 31.90  24.30  28.09 
2002 07 31.80  23.90  27.84 
2002 08 54.70    .30  27.50 
2003 08 11.20    . 0   5.60 
2004 03 31.60  24.60  28.10 
2004 07 30.50  23.20  26.85 
2004 10 32.30  23.40  27.84 
2005 05 30.34  24.29  27.31 
2005 08 30.35  24.30  27.32 
2006 02 29.73  24.25  26.99 
2006 03 29.88  24.61  27.24 
2006 06 29.71  24.00  26.85 
2006 07 30.55  24.57  27.56 
2006 08 30.21  24.60  27.40 
2006 10 30.13  23.98  27.05 
2006 11 30.98  23.69  27.33 
2007 01 30.12  25.37  27.74 
2007 02 29.67  24.25  26.96 
2007 03 29.75  24.29  27.02 
2007 04 30.46  24.84  27.65 
2007 05 30.16  24.34  27.25 
2007 06 30.14  23.98  27.06 
2007 11 29.71  24.10  26.90 
2007 12 30.09  24.18  27.13 
2008 05 30.31  24.27  27.29 
2008 06 30.14  24.21  27.17 
2008 07 29.72  23.66  26.68 
2008 08 29.61  23.54  26.57 
2008 09 30.16  23.83  26.99 
2009 03 30.19  24.07  27.13 
2009 04 30.75  24.52  27.63 
2009 06 30.37  24.62  27.49 
2009 10 32.00  24.52  28.26 
2009 11 30.89  24.70  27.79 
2009 12 31.04  24.92  27.98 
2010 01 30.37  24.52  27.44 
2010 02 31.02  24.60  27.81 
2010 03 31.75  25.14  28.44 
2010 04 31.03  25.12  28.07 
2010 05 31.42  25.06  28.24 
2010 06 31.03  24.40  27.71 
2010 07 30.23  24.24  27.23 
2010 09 30.94  23.97  27.45 
2010 11 30.96  24.22  27.59 
2010 12 30.22  24.34  27.28 
2011 01 30.27  24.43  27.35 
2011 02 29.56  24.17  26.86 
2011 03 29.97  24.47  27.22 
2011 04 30.26  24.68  27.47 
2011 05 30.07  25.01  27.54 
2011 07 30.53  24.75  27.64 
2011 09 29.95  24.37  27.16 
2011 10 31.55  24.27  27.91 
2011 11 30.52  24.60  27.56 
2012 01 29.56  24.72  27.14 
2012 02 30.24  24.54  27.39 
2012 03 29.72  24.70  27.21 
2012 04 30.17  24.79  27.48 
2012 05 29.97  24.79  27.38 
2012 06 30.15  24.67  27.41 
2012 07 29.00  24.10  26.55 
2012 08 29.51  24.63  27.07 
2012 09 30.72  24.57  27.64 
2012 10 31.20  24.54  27.87 
2012 11 30.07  24.53  27.30 
2012 12 30.46  24.53  27.49 
2013 01 29.86  25.14  27.50 
2013 02 30.03  24.83  27.43 
2013 03 30.87  25.43  28.15 
2013 04 30.43  24.78  27.60 
2013 05 30.36  24.56  27.46 
2013 06 30.52  25.02  27.77 
2013 07 29.51  24.32  26.91 
2013 09 29.96  24.51  27.23 
2013 10 30.43  24.57  27.50 
2013 11 30.08  24.55  27.31 
2013 12 29.94  24.85  27.39 
