1976 01 99.99 -99.99  25.10 
1976 02 99.99 -99.99  25.70 
1976 03 99.99 -99.99  26.30 
1976 04 99.99 -99.99  25.50 
1976 06 99.99 -99.99  25.70 
1976 07 99.99 -99.99  25.10 
1976 08 99.99 -99.99  25.40 
1976 10 99.99 -99.99  28.10 
1976 11 99.99 -99.99  28.10 
1976 12 99.99 -99.99  27.60 
1977 01 99.99 -99.99  26.20 
1977 02 99.99 -99.99  25.80 
1977 03 99.99 -99.99  26.00 
1977 04 99.99 -99.99  26.90 
1977 05 99.99 -99.99  27.10 
1977 06 99.99 -99.99  25.80 
1977 07 99.99 -99.99  24.90 
1977 08 99.99 -99.99  25.20 
1977 10 99.99 -99.99  28.20 
1977 11 99.99 -99.99  28.80 
1977 12 99.99 -99.99  27.00 
1978 01 99.99 -99.99  26.50 
1978 02 99.99 -99.99  26.60 
1978 04 99.99 -99.99  26.70 
1978 06 99.99 -99.99  26.20 
1978 07 99.99 -99.99  25.70 
1978 09 99.99 -99.99  27.20 
1978 10 99.99 -99.99  27.90 
1978 11 99.99 -99.99  27.20 
1978 12 99.99 -99.99  26.80 
1979 01 99.99 -99.99  26.20 
1979 02 99.99 -99.99  26.50 
1979 03 99.99 -99.99  26.50 
1979 04 99.99 -99.99  27.40 
1979 05 99.99 -99.99  27.10 
1979 06 99.99 -99.99  26.20 
1979 08 99.99 -99.99  26.00 
1979 09 99.99 -99.99  26.90 
1979 10 99.99 -99.99  27.60 
1979 11 99.99 -99.99  28.00 
1979 12 99.99 -99.99  27.00 
1980 01 99.99 -99.99  26.20 
1980 02 99.99 -99.99  25.80 
1980 03 99.99 -99.99  26.00 
1980 04 99.99 -99.99  29.10 
1980 05 99.99 -99.99  26.90 
1980 06 99.99 -99.99  26.30 
1980 07 99.99 -99.99  26.20 
1980 08 99.99 -99.99  26.40 
1980 09 99.99 -99.99  26.70 
1980 10 99.99 -99.99  27.80 
1980 11 99.99 -99.99  28.40 
1980 12 99.99 -99.99  26.70 
1981 01 99.99 -99.99  26.10 
1981 03 99.99 -99.99  26.50 
1981 04 99.99 -99.99  27.10 
1981 06 99.99 -99.99  26.10 
1981 10 99.99 -99.99  27.60 
1981 12 99.99 -99.99  26.60 
1982 06 99.99 -99.99  25.90 
1982 07 99.99 -99.99  25.10 
1982 08 99.99 -99.99  25.40 
1982 09 99.99 -99.99  24.00 
1982 11 99.99 -99.99  28.00 
1982 12 99.99 -99.99  27.70 
1983 01 99.99 -99.99  26.90 
1983 02 99.99 -99.99  26.80 
1983 05 99.99 -99.99  26.50 
1983 07 99.99 -99.99  25.40 
1983 08 99.99 -99.99  26.10 
1983 11 99.99 -99.99  27.00 
1983 12 99.99 -99.99  26.60 
1984 02 99.99 -99.99  25.60 
1984 03 99.99 -99.99  26.10 
1984 05 99.99 -99.99  26.60 
1984 06 99.99 -99.99  25.80 
1984 07 99.99 -99.99  25.70 
1984 10 99.99 -99.99  27.60 
1984 12 99.99 -99.99  26.40 
1985 04 99.99 -99.99  26.90 
1987 02 99.99 -99.99  25.90 
1987 04 99.99 -99.99  27.20 
1987 07 99.99 -99.99  25.90 
1987 09 99.99 -99.99  26.60 
1987 10 99.99 -99.99  28.20 
1987 11 99.99 -99.99  28.40 
1987 12 99.99 -99.99  27.10 
1988 01 99.99 -99.99  26.70 
1988 02 99.99 -99.99  26.60 
1988 03 99.99 -99.99  27.10 
1988 06 99.99 -99.99  26.80 
1988 08 99.99 -99.99  26.80 
1988 09 99.99 -99.99  27.70 
1988 10 99.99 -99.99  28.20 
1988 11 99.99 -99.99  27.30 
1988 12 99.99 -99.99  26.00 
1989 06 99.99 -99.99  26.40 
1989 09 99.99 -99.99  26.00 
1989 12 99.99 -99.99  27.00 
1990 01 99.99 -99.99  25.90 
1990 11 99.99 -99.99  28.50 
1990 12 99.99 -99.99  26.30 
1991 04 99.99 -99.99  27.10 
1991 05 99.99 -99.99  27.20 
1995 10 34.70  23.10  28.90 
1997 02 30.00  23.40  26.70 
1998 01 31.80  24.00  27.90 
1999 03 30.70  23.20  26.95 
1999 07 31.70  20.20  25.95 
1999 11 33.70  21.00  27.35 
2000 02 29.80  23.30  26.55 
2000 05 31.90  22.70  27.30 
2000 08 32.59  20.60  26.59 
2000 09 34.40  22.00  28.20 
2001 01 30.20  23.40  26.80 
2001 02 30.80  23.00  26.90 
2001 03 30.80  23.10  26.95 
2003 09 33.90  21.90  27.90 
2003 10 30.50  23.40  26.95 
2003 11 34.30  24.20  29.25 
2004 04 34.70   1.60  18.15 
2004 05 33.20  22.80  28.00 
2004 07 32.70  19.90  26.30 
2004 08 32.50  20.20  26.35 
2004 10 35.00  22.70  28.85 
2004 11 99.99 -99.99  28.30 
2005 01 99.99 -99.99  27.00 
2005 03 99.99 -99.99  26.60 
2005 04 99.99 -99.99  26.90 
2005 05 99.99 -99.99  26.90 
2005 06 99.99 -99.99  26.90 
2005 08 99.99 -99.99  26.50 
2005 10 99.99 -99.99  28.20 
2005 11 99.99 -99.99  28.10 
2005 12 99.99 -99.99  26.70 
2006 02 99.99 -99.99  26.40 
2006 04 99.99 -99.99  26.90 
2006 07 99.99 -99.99  25.30 
2006 09 99.99 -99.99  26.60 
2006 10 99.99 -99.99  27.40 
2006 11 99.99 -99.99  28.90 
2006 12 99.99 -99.99  28.00 
2007 01 99.99 -99.99  27.40 
2007 02 99.99 -99.99  27.40 
2007 03 99.99 -99.99  26.60 
2007 04 99.99 -99.99  27.00 
2007 05 99.99 -99.99  27.20 
2007 06 99.99 -99.99  26.70 
2007 07 99.99 -99.99  25.80 
2007 08 99.99 -99.99  26.10 
2007 09 99.99 -99.99  27.00 
2007 10 99.99 -99.99  28.30 
2007 11 99.99 -99.99  27.90 
2007 12 99.99 -99.99  27.10 
2008 01 99.99 -99.99  26.70 
2008 02 99.99 -99.99  26.10 
2008 03 99.99 -99.99  26.50 
2008 04 99.99 -99.99  26.90 
2008 06 99.99 -99.99  26.50 
2008 07 99.99 -99.99  25.70 
2008 08 99.99 -99.99  26.70 
2008 09 99.99 -99.99  27.60 
2008 10 99.99 -99.99  28.80 
2008 11 99.99 -99.99  27.50 
2008 12 99.99 -99.99  26.70 
2009 01 99.99 -99.99  26.50 
2009 04 99.99 -99.99  27.70 
2009 05 99.99 -99.99  27.40 
2009 06 99.99 -99.99  26.40 
2009 07 99.99 -99.99  26.40 
2009 11 99.99 -99.99  28.40 
2009 12 99.99 -99.99  26.80 
2010 02 99.99 -99.99  27.30 
2010 03 99.99 -99.99  27.50 
2010 04 99.99 -99.99  27.50 
2010 05 99.99 -99.99  27.70 
2010 06 99.99 -99.99  27.10 
2010 07 99.99 -99.99  26.00 
2010 08 99.99 -99.99  27.40 
2010 09 99.99 -99.99  27.60 
2010 10 99.99 -99.99  27.50 
2010 11 99.99 -99.99  27.70 
2010 12 99.99 -99.99  26.50 
2011 01 99.99 -99.99  26.30 
2011 03 99.99 -99.99  26.30 
2011 04 99.99 -99.99  26.70 
2011 05 99.99 -99.99  26.60 
2011 06 99.99 -99.99  25.40 
2011 07 99.99 -99.99  25.60 
2011 08 99.99 -99.99  26.10 
2011 09 99.99 -99.99  27.40 
2011 10 99.99 -99.99  28.40 
2011 11 99.99 -99.99  27.40 
2011 12 99.99 -99.99  27.40 
