1980 12 99.99  13.50 -99.99 
1981 09 32.40 -99.99 -99.99 
1981 10 30.00  19.10  24.55 
1981 11 99.99  12.80 -99.99 
1982 02 25.00  13.70  19.35 
1982 03 29.40  17.60  23.50 
1982 04 99.99  20.70 -99.99 
1982 05 99.99  22.40 -99.99 
1982 08 36.50 -99.99 -99.99 
1982 11 26.50  15.10  20.80 
1982 12 22.70 -99.99 -99.99 
1983 01 22.10  12.90  17.50 
1983 02 25.80  13.60  19.70 
1983 03 29.50  13.40  21.45 
1983 04 33.00  16.40  24.70 
1983 05 36.59  22.80  29.70 
1983 06 36.30 -99.99 -99.99 
1983 07 32.30 -99.99 -99.99 
1983 08 33.30 -99.99 -99.99 
1983 09 31.80 -99.99 -99.99 
1983 10 30.90  20.00  25.45 
1983 12 23.20 -99.99 -99.99 
1984 01 21.40  13.20  17.29 
1984 02 24.90  13.00  18.95 
1984 03 28.80  15.00  21.90 
1984 04 36.00  17.29  26.65 
1984 05 34.00  20.40  27.20 
1984 06 32.80  22.20  27.50 
1984 07 31.00  21.10  26.05 
1984 08 32.09  20.90  26.50 
1984 09 28.40  20.29  24.34 
1984 10 29.80  20.90  25.34 
1984 11 26.30  15.40  20.84 
1984 12 26.10  15.20  20.65 
1985 01 21.50  10.30  15.90 
1985 02 23.90  14.00  18.95 
1985 03 28.30  17.50  22.90 
1985 04 30.90  18.29  24.59 
1985 05 32.80  21.50  27.15 
1985 06 32.80  21.80  27.30 
1985 07 31.70  21.60  26.65 
1985 08 33.70  21.90  27.80 
1985 11 29.60  17.10  23.35 
1986 01 24.40  10.30  17.35 
1986 02 28.80  13.20  21.00 
1986 03 30.30  15.30  22.80 
1986 04 33.70  21.10  27.40 
1986 05 33.80  22.00  27.90 
1986 06 99.99  22.90 -99.99 
1986 07 31.30 -99.99 -99.99 
1986 08 35.30  21.60  28.45 
1986 09 32.90  22.10  27.50 
1986 10 28.00  20.00  24.00 
1986 11 26.70  17.00  21.85 
1986 12 99.99  15.10 -99.99 
1987 01 23.00  10.30  16.65 
1987 02 25.20  12.30  18.75 
1987 03 25.80  15.60  20.70 
1987 04 28.10  16.20  22.15 
1987 05 33.30  21.40  27.34 
1987 06 33.50  22.60  28.05 
1987 07 31.20  22.50  26.85 
1987 08 33.50  22.20  27.85 
1987 09 33.40  21.80  27.60 
1987 10 30.30  17.10  23.70 
1987 11 27.20  15.10  21.15 
1987 12 24.80  13.80  19.29 
1988 01 99.99  10.70 -99.99 
1988 02 24.80  13.50  19.15 
1988 03 27.50  15.60  21.55 
1988 04 31.50  18.90  25.20 
1988 05 32.00  22.50  27.25 
1988 06 33.20  22.00  27.60 
1988 07 32.40  22.20  27.30 
1988 08 32.59  22.00  27.30 
1988 09 32.50  21.20  26.85 
1988 12 24.10  13.60  18.85 
1989 01 26.00  16.10  21.05 
1989 04 33.09  17.70  25.40 
1989 05 35.30  22.10  28.70 
1989 08 32.90  22.00  27.45 
1990 02 27.70  13.50  20.60 
1990 03 28.00  16.90  22.45 
1990 05 34.00  22.00  28.00 
1990 06 35.30  21.90  28.59 
1990 07 32.30  21.70  27.00 
1990 08 32.80  21.70  27.25 
1990 09 32.30  21.90  27.09 
1990 10 29.80 -99.99 -99.99 
1990 11 28.00  16.20  22.10 
1990 12 25.00  12.10  18.54 
1991 01 23.80  14.70  19.25 
1991 02 25.50  14.10  19.79 
1991 03 34.59  15.80  25.20 
1991 09 31.10  20.90  26.00 
1991 10 99.99  19.20 -99.99 
1991 11 24.40  15.10  19.75 
1991 12 23.40  15.70  19.54 
1992 01 20.50 -99.99 -99.99 
1992 02 25.20  14.40  19.79 
1992 03 99.99  18.00 -99.99 
1992 04 28.50  19.29  23.90 
1992 05 31.40  20.80  26.09 
1992 06 34.09  21.90  28.00 
1992 08 32.90  21.30  27.10 
1992 09 31.20  20.80  26.00 
1992 10 28.70  18.20  23.45 
1992 11 26.30  15.70  21.00 
1992 12 99.99  16.50 -99.99 
1993 01 99.99  15.90 -99.99 
1993 02 99.99  15.30 -99.99 
1993 03 99.99  16.40 -99.99 
1993 04 99.99  18.50 -99.99 
1993 05 32.70  20.70  26.70 
1993 06 99.99  22.50 -99.99 
1993 07 32.09 -99.99 -99.99 
1994 07 99.99  20.29 -99.99 
1994 08 99.99  21.00 -99.99 
1994 09 30.80  19.60  25.20 
1994 10 29.60  20.40  25.00 
1994 11 29.90  19.00  24.45 
1994 12 99.99  16.10 -99.99 
1995 01 99.99  13.40 -99.99 
1995 02 27.60  14.70  21.15 
1995 03 99.99  16.79 -99.99 
1995 04 99.99  18.70 -99.99 
1995 05 99.99  23.00 -99.99 
1995 06 99.99  22.40 -99.99 
1995 07 99.99  20.90 -99.99 
1995 09 99.99  20.40 -99.99 
1995 10 99.99  18.40 -99.99 
1995 11 99.99  16.29 -99.99 
1995 12 99.99  14.40 -99.99 
1996 02 99.99  12.60 -99.99 
1996 03 99.99  14.50 -99.99 
1996 04 99.99  17.60 -99.99 
1996 05 99.99  22.90 -99.99 
1996 06 36.70  22.30  29.50 
1996 07 99.99  22.10 -99.99 
1996 08 33.00  22.00  27.50 
1996 09 99.99  22.30 -99.99 
1996 10 30.80  19.79  25.30 
1996 11 27.90  15.80  21.85 
1996 12 99.99  13.00 -99.99 
1997 01 23.50  12.50  18.00 
1997 02 26.90  15.20  21.05 
1997 05 99.99  20.90 -99.99 
1997 07 99.99  21.30 -99.99 
1998 03 99.99  16.20 -99.99 
1998 05 38.09 -99.99 -99.99 
1999 10 99.99  17.10 -99.99 
1999 11 99.99  14.50 -99.99 
2000 02 99.99  14.70 -99.99 
2000 03 99.99  19.70 -99.99 
2000 04 99.99  19.40 -99.99 
2000 05 99.99  22.10 -99.99 
2000 06 99.99  22.00 -99.99 
2000 07 99.99  20.80 -99.99 
2000 11 99.99  16.20 -99.99 
2000 12 99.99  11.90 -99.99 
2001 01 99.99  12.40 -99.99 
2001 02 99.99  15.10 -99.99 
2001 11 99.99  15.50 -99.99 
2002 02 99.99  12.40 -99.99 
2002 05 99.99  22.30 -99.99 
2002 06 99.99  22.30 -99.99 
2002 09 99.99  20.80 -99.99 
2003 04 99.99  19.79 -99.99 
2003 05 99.99  23.60 -99.99 
2004 06 99.99  23.00 -99.99 
2004 07 99.99  21.90 -99.99 
2004 08 99.99  22.50 -99.99 
2004 09 99.99  21.90 -99.99 
2004 11 99.99  17.10 -99.99 
