1979 01 99.99 -99.99  26.00 
1979 02 99.99 -99.99  27.00 
1979 04 99.99 -99.99  27.30 
1979 05 99.99 -99.99  26.20 
1979 07 99.99 -99.99  24.50 
1979 08 99.99 -99.99  24.70 
1979 09 99.99 -99.99  24.70 
1979 10 99.99 -99.99  25.10 
1979 11 99.99 -99.99  25.50 
1979 12 99.99 -99.99  24.10 
1980 01 99.99 -99.99  25.60 
1980 02 99.99 -99.99  26.80 
1980 03 99.99 -99.99  26.40 
1980 04 99.99 -99.99  26.70 
1980 05 99.99 -99.99  26.10 
1980 06 99.99 -99.99  25.60 
1980 07 99.99 -99.99  24.30 
1980 08 99.99 -99.99  24.40 
1980 09 99.99 -99.99  24.70 
1980 10 99.99 -99.99  25.50 
1980 11 99.99 -99.99  25.30 
1980 12 99.99 -99.99  24.20 
1981 01 99.99 -99.99  24.70 
1981 02 99.99 -99.99  27.60 
1981 03 99.99 -99.99  26.90 
1981 04 99.99 -99.99  27.10 
1981 08 99.99 -99.99  24.60 
1982 02 99.99 -99.99  27.10 
1982 03 99.99 -99.99  24.60 
1982 04 99.99 -99.99  27.10 
1982 05 99.99 -99.99  26.20 
1982 06 99.99 -99.99  25.20 
1982 07 99.99 -99.99  24.80 
1982 08 99.99 -99.99  24.00 
1982 09 99.99 -99.99  25.30 
1982 10 99.99 -99.99  25.30 
1982 11 99.99 -99.99  25.60 
1982 12 99.99 -99.99  24.50 
1983 04 99.99 -99.99  28.20 
1983 05 99.99 -99.99  26.90 
1983 06 99.99 -99.99  25.60 
1983 07 99.99 -99.99  25.00 
1983 11 99.99 -99.99  25.60 
1984 01 99.99 -99.99  26.10 
1984 02 99.99 -99.99  27.60 
1984 03 99.99 -99.99  27.00 
1984 08 99.99 -99.99  24.50 
1984 11 99.99 -99.99  25.90 
1985 03 99.99 -99.99  27.30 
1985 06 99.99 -99.99  25.40 
1986 04 99.99 -99.99  27.00 
1986 10 99.99 -99.99  24.80 
1987 01 99.99 -99.99  26.50 
1987 11 99.99 -99.99  26.10 
1988 01 99.99 -99.99  25.80 
1988 02 99.99 -99.99  27.30 
1988 03 99.99 -99.99  27.10 
1988 05 99.99 -99.99  26.90 
1988 07 99.99 -99.99  21.30 
1988 09 99.99 -99.99  25.20 
1988 11 99.99 -99.99  25.70 
1988 12 99.99 -99.99  23.80 
1989 02 99.99 -99.99  27.10 
1989 07 99.99 -99.99  25.30 
1989 09 99.99 -99.99  24.30 
1989 10 99.99 -99.99  24.90 
1989 12 99.99 -99.99  25.30 
1990 01 99.99 -99.99  25.90 
1990 02 99.99 -99.99  27.50 
1990 03 99.99 -99.99  28.50 
1990 05 99.99 -99.99  26.30 
1990 07 99.99 -99.99  23.50 
1990 09 99.99 -99.99  24.90 
1990 10 99.99 -99.99  25.40 
1990 12 99.99 -99.99  24.90 
1991 01 99.99 -99.99  26.00 
1991 02 99.99 -99.99  27.20 
1991 03 99.99 -99.99  27.20 
1991 09 99.99 -99.99  23.90 
1991 10 99.99 -99.99  24.70 
1991 12 99.99 -99.99   5.30 
1992 02 99.99 -99.99  27.40 
1992 03 99.99 -99.99  27.10 
1992 04 99.99 -99.99  26.70 
1992 05 99.99 -99.99  27.20 
1992 06 99.99 -99.99  25.00 
1992 07 99.99 -99.99  23.80 
1992 09 99.99 -99.99  24.50 
1992 10 99.99 -99.99  25.10 
1992 11 99.99 -99.99  24.90 
1992 12 99.99 -99.99  25.40 
1993 04 99.99 -99.99  26.60 
1993 06 99.99 -99.99  25.00 
1993 07 99.99 -99.99  23.90 
1993 08 99.99 -99.99  24.20 
1993 09 99.99 -99.99  24.50 
1993 10 99.99 -99.99  25.30 
1993 11 99.99 -99.99  25.60 
1994 02 99.99 -99.99  27.30 
1994 04 99.99 -99.99  27.10 
1994 05 99.99 -99.99  26.20 
1994 07 99.99 -99.99  24.30 
1994 08 99.99 -99.99  24.30 
1994 09 99.99 -99.99  24.60 
1994 10 99.99 -99.99  25.00 
1994 11 99.99 -99.99  25.30 
1994 12 99.99 -99.99  24.60 
1995 01 99.99 -99.99  25.50 
1995 03 99.99 -99.99  27.10 
1995 04 99.99 -99.99  26.60 
1995 05 99.99 -99.99  26.30 
1995 06 99.99 -99.99  25.50 
1995 08 99.99 -99.99  24.70 
1995 12 99.99 -99.99  24.80 
1996 01 99.99 -99.99  25.90 
1996 02 99.99 -99.99  26.70 
1996 03 99.99 -99.99  26.60 
1996 04 99.99 -99.99  26.40 
1996 05 99.99 -99.99  26.40 
1996 08 99.99 -99.99  24.30 
1996 09 99.99 -99.99  24.60 
1996 10 99.99 -99.99  25.20 
1996 12 99.99 -99.99  25.00 
1997 05 99.99 -99.99  26.40 
1997 08 99.99 -99.99  24.80 
1997 11 99.99 -99.99  25.80 
1998 01 99.99 -99.99  26.40 
1998 02 99.99 -99.99  28.60 
1998 03 99.99 -99.99  29.20 
1999 01 99.99 -99.99  26.70 
1999 05 99.99 -99.99  26.40 
2000 06 99.99 -99.99  25.10 
2000 12 99.99 -99.99  25.00 
2001 11 99.99 -99.99  25.90 
2004 04 99.99 -99.99  27.00 
2005 01 99.99 -99.99  25.20 
2005 02 99.99 -99.99  28.30 
2005 06 99.99 -99.99  25.40 
2005 08 99.99 -99.99  24.10 
2005 11 99.99 -99.99  26.10 
2005 12 99.99 -99.99  26.10 
2006 03 99.99 -99.99  26.90 
2006 04 99.99 -99.99  26.90 
2007 06 99.99 -99.99  25.90 
2008 05 99.99 -99.99  26.40 
2010 08 99.99 -99.99  25.00 
2010 10 99.99 -99.99  25.80 
2011 01 99.99 -99.99  25.70 
2012 07 99.99 -99.99  24.30 
