1957 07 29.34  22.95  26.14 
1957 08 30.23  23.52  26.87 
1957 09 29.84  22.97  26.40 
1957 10 31.07  23.34  27.20 
1957 11 30.37  23.56  26.96 
1957 12 30.53  23.56  27.04 
1958 01 30.05  23.29  26.67 
1958 02 29.71  23.32  26.51 
1958 03 29.78  23.65  26.71 
1958 04 30.24  24.05  27.14 
1958 05 30.30  24.11  27.20 
1958 06 30.34  23.61  26.97 
1958 07 30.21  23.51  26.86 
1958 08 29.85  23.72  26.78 
1958 09 30.61  23.90  27.25 
1958 10 30.46  24.50  27.48 
1958 11 30.89  24.24  27.56 
1958 12 29.96  24.11  27.03 
1959 01 99.99 -99.99  26.90 
1959 02 99.99 -99.99  26.50 
1959 03 99.99 -99.99  27.00 
1959 04 99.99 -99.99  27.00 
1959 05 99.99 -99.99  27.20 
1959 06 99.99 -99.99  26.80 
1959 07 99.99 -99.99  26.60 
1959 08 99.99 -99.99  26.50 
1959 09 99.99 -99.99  26.70 
1959 10 99.99 -99.99  27.00 
1959 11 99.99 -99.99  27.50 
1959 12 99.99 -99.99  27.10 
1960 01 99.99 -99.99  26.90 
1960 02 99.99 -99.99  26.80 
1960 03 99.99 -99.99  26.80 
1960 04 99.99 -99.99  27.10 
1960 05 99.99 -99.99  27.00 
1960 06 99.99 -99.99  26.70 
1960 07 99.99 -99.99  26.30 
1960 08 99.99 -99.99  26.70 
1960 09 99.99 -99.99  26.70 
1960 10 99.99 -99.99  27.60 
1960 11 99.99 -99.99  27.50 
1960 12 99.99 -99.99  27.20 
1961 01 99.99 -99.99  27.00 
1961 02 99.99 -99.99  26.70 
1961 03 99.99 -99.99  27.00 
1961 04 99.99 -99.99  27.10 
1961 05 99.99 -99.99  27.10 
1961 06 99.99 -99.99  26.40 
1961 07 99.99 -99.99  26.40 
1961 08 99.99 -99.99  26.60 
1961 09 99.99 -99.99  26.60 
1961 10 99.99 -99.99  27.10 
1961 11 99.99 -99.99  26.50 
1961 12 99.99 -99.99  26.80 
1962 01 99.99 -99.99  26.90 
1962 02 99.99 -99.99  26.50 
1962 03 99.99 -99.99  26.30 
1962 04 99.99 -99.99  26.90 
1962 05 99.99 -99.99  26.60 
1962 06 99.99 -99.99  26.40 
1962 07 99.99 -99.99  26.70 
1962 09 99.99 -99.99  26.30 
1962 10 99.99 -99.99  27.00 
1962 11 99.99 -99.99  27.30 
1976 02 99.99 -99.99  25.70 
1976 03 99.99 -99.99  26.70 
1976 04 99.99 -99.99  26.70 
1976 05 99.99 -99.99  27.20 
1976 06 99.99 -99.99  26.20 
1976 09 99.99 -99.99  27.00 
1976 10 99.99 -99.99  26.40 
1976 11 99.99 -99.99  26.70 
1976 12 99.99 -99.99  26.70 
1977 02 99.99 -99.99  26.10 
1977 03 99.99 -99.99  26.50 
1977 05 99.99 -99.99  26.60 
1977 06 99.99 -99.99  26.20 
1977 07 99.99 -99.99  26.30 
1977 08 99.99 -99.99  26.00 
1977 09 99.99 -99.99  27.10 
1977 10 99.99 -99.99  26.90 
1977 11 99.99 -99.99  27.20 
1978 01 99.99 -99.99  26.50 
1978 02 99.99 -99.99  26.40 
1978 03 99.99 -99.99  26.20 
1978 05 99.99 -99.99  27.30 
1978 07 99.99 -99.99  26.60 
1978 09 99.99 -99.99  26.40 
1978 10 99.99 -99.99  27.20 
1978 11 99.99 -99.99  26.80 
1978 12 99.99 -99.99  26.70 
1979 02 99.99 -99.99  26.60 
1979 03 99.99 -99.99  26.50 
1979 04 99.99  23.44  26.00 
1979 05 99.99 -99.99  26.70 
1979 06 99.99 -99.99  26.50 
1979 08 99.99 -99.99  26.70 
1979 09 29.88 -99.99  26.40 
1979 10 99.99 -99.99  27.70 
1979 11 99.99  23.24  26.70 
1979 12 99.99 -99.99  27.00 
1980 02 99.99 -99.99  26.30 
1980 03 99.99 -99.99  26.30 
1980 05 99.99 -99.99  27.30 
1980 06 30.32 -99.99  26.50 
1980 08 99.99 -99.99  26.10 
1980 10 99.99 -99.99  27.00 
1980 11 99.99 -99.99  26.90 
1980 12 99.99 -99.99  26.70 
1981 02 30.35 -99.99  25.60 
1981 03 99.99 -99.99  26.10 
1981 04 99.99 -99.99  26.50 
1981 06 99.99 -99.99  26.40 
1981 09 99.99 -99.99  26.70 
1981 10 99.99 -99.99  26.70 
1981 12 30.59  23.35  26.97 
1986 04 99.99  23.46 -99.99 
1986 10 30.45 -99.99 -99.99 
1988 06 99.99  23.46 -99.99 
1988 11 99.99  23.70 -99.99 
1990 12 30.73 -99.99 -99.99 
1991 01 30.58  23.75  27.16 
1991 02 30.15 -99.99 -99.99 
1996 01 99.99 -99.99  26.60 
1996 02 30.43 -99.99 -99.99 
1996 03 30.56 -99.99 -99.99 
1996 06 30.13 -99.99 -99.99 
1996 08 30.24 -99.99 -99.99 
1996 09 99.99 -99.99  27.50 
1996 12 30.95 -99.99 -99.99 
1997 03 30.48 -99.99 -99.99 
1997 05 99.99  23.89 -99.99 
1997 06 30.78 -99.99  27.00 
1997 10 30.50 -99.99 -99.99 
1997 11 30.83 -99.99 -99.99 
1998 02 29.74 -99.99 -99.99 
1998 03 30.23 -99.99 -99.99 
1998 04 30.54 -99.99 -99.99 
1998 05 30.49 -99.99 -99.99 
1998 06 30.34 -99.99 -99.99 
1998 07 30.39 -99.99 -99.99 
1998 09 99.99 -99.99  27.10 
1998 10 30.83 -99.99 -99.99 
1998 11 30.96 -99.99 -99.99 
1999 04 30.46 -99.99 -99.99 
1999 05 29.90 -99.99  26.40 
1999 06 29.84 -99.99 -99.99 
1999 07 29.58 -99.99 -99.99 
1999 08 29.58 -99.99 -99.99 
1999 11 30.19 -99.99 -99.99 
2000 10 99.99 -99.99  26.80 
2001 01 99.99 -99.99  26.60 
2001 02 99.99 -99.99  26.90 
2001 04 99.99 -99.99  27.10 
2002 01 99.99 -99.99  26.80 
2003 09 99.99 -99.99  26.70 
2003 10 99.99 -99.99  27.10 
2004 04 99.99 -99.99  27.50 
2004 05 99.99 -99.99  27.20 
2004 07 99.99 -99.99  26.70 
2004 11 99.99 -99.99  27.20 
2004 12 99.99 -99.99  27.20 
2005 03 99.99 -99.99  27.10 
2005 04 99.99 -99.99  27.00 
2005 06 99.99 -99.99  26.70 
2005 08 99.99 -99.99  26.90 
2005 09 99.99 -99.99  26.80 
2005 10 99.99 -99.99  27.10 
2005 11 99.99 -99.99  27.30 
2005 12 99.99 -99.99  26.80 
2006 01 30.52 -99.99  26.80 
2006 02 30.91 -99.99  27.00 
2006 03 30.80 -99.99  26.90 
2006 04 30.57 -99.99 -99.99 
2006 06 30.22 -99.99 -99.99 
2006 07 30.30 -99.99 -99.99 
2006 08 30.82 -99.99 -99.99 
2006 09 30.03 -99.99 -99.99 
2006 10 31.11 -99.99 -99.99 
2006 11 31.10 -99.99 -99.99 
2006 12 30.68 -99.99 -99.99 
2007 01 30.95 -99.99  27.20 
2007 02 30.42 -99.99  26.70 
2007 03 30.38 -99.99  26.60 
2007 04 30.40 -99.99  26.60 
2007 05 30.64 -99.99 -99.99 
2007 06 30.46 -99.99  27.10 
2007 07 30.05 -99.99 -99.99 
2007 08 29.97 -99.99  26.50 
2007 09 30.18 -99.99  26.70 
2007 10 31.04 -99.99  27.20 
2007 11 30.39 -99.99  27.00 
2007 12 31.13 -99.99  27.10 
2008 01 30.55 -99.99  26.60 
2008 02 30.04 -99.99  26.70 
2008 03 99.99 -99.99  26.80 
2008 04 99.99 -99.99  26.30 
2008 05 99.99 -99.99  26.70 
2008 06 99.99 -99.99  26.40 
2008 07 29.65 -99.99  26.30 
2008 08 29.27 -99.99  26.10 
2008 09 30.26 -99.99  26.70 
2008 10 30.13 -99.99  26.70 
2008 11 99.99 -99.99  26.90 
2008 12 99.99 -99.99  27.20 
2009 01 99.99 -99.99  27.10 
2009 02 29.81 -99.99  26.60 
2009 03 30.05 -99.99  26.80 
2009 04 99.99 -99.99  27.40 
2009 05 31.08 -99.99  27.30 
2009 06 30.17 -99.99  27.10 
2009 07 99.99 -99.99  27.10 
2009 08 99.99 -99.99  27.00 
2009 09 99.99 -99.99  27.60 
2009 10 99.99 -99.99  27.40 
2009 11 99.99 -99.99  27.50 
2009 12 99.99 -99.99  27.30 
2010 01 99.99 -99.99  26.80 
2010 02 99.99 -99.99  27.20 
2010 03 99.99 -99.99  27.10 
2010 04 99.99 -99.99  27.50 
2010 05 30.97  25.16  28.06 
2010 07 30.47 -99.99 -99.99 
2010 08 30.51 -99.99 -99.99 
2010 11 30.90 -99.99 -99.99 
2012 02 30.75 -99.99 -99.99 
2012 05 30.27 -99.99 -99.99 
2012 07 29.69 -99.99 -99.99 
2012 09 30.50 -99.99 -99.99 
2012 10 30.82 -99.99 -99.99 
2012 11 30.04 -99.99 -99.99 
2012 12 30.66 -99.99 -99.99 
2013 02 29.97 -99.99 -99.99 
2013 03 30.56 -99.99 -99.99 
2013 04 30.13 -99.99 -99.99 
2013 05 30.60 -99.99 -99.99 
2013 06 30.33 -99.99 -99.99 
