1977 01 27.90  14.80  21.35 
1977 02 29.10  16.50  22.80 
1977 03 31.20  18.10  24.65 
1977 04 32.00  18.90  25.45 
1977 05 34.30  19.90  27.09 
1977 06 32.80  21.20  27.00 
1977 07 32.59  20.20  26.40 
1977 08 32.40  20.70  26.55 
1977 09 33.20  20.80  27.00 
1977 10 32.00  19.20  25.60 
1977 11 30.70  19.00  24.85 
1977 12 29.40  17.29  23.34 
1978 01 28.60  12.60  20.60 
1978 02 29.30  13.60  21.45 
1978 03 29.70  16.50  23.10 
1978 04 34.50  17.40  25.95 
1978 05 37.30  21.60  29.45 
1978 06 33.40  21.30  27.35 
1978 07 33.40  20.29  26.85 
1978 08 33.59  20.40  27.00 
1978 09 32.20  20.80  26.50 
1978 10 30.50  18.79  24.65 
1978 11 31.00  19.79  25.40 
1978 12 30.60  21.60  26.10 
1979 01 28.50  15.00  21.75 
1979 02 30.60  14.40  22.50 
1979 03 33.00  18.00  25.50 
1979 04 33.40  20.20  26.80 
1979 05 34.70  21.10  27.90 
1979 06 34.00  21.60  27.80 
1979 07 30.20  20.90  25.55 
1979 08 32.00  19.60  25.80 
1979 09 31.90  19.00  25.45 
1979 10 29.50  21.60  25.55 
1979 11 27.70  19.50  23.60 
1979 12 26.40  16.60  21.50 
1980 01 30.70  14.30  22.50 
1980 02 32.00  13.70  22.85 
1980 03 34.80  21.20  28.00 
1980 04 34.80  17.29  26.05 
1980 05 38.90  20.70  29.80 
1982 06 35.30  21.40  28.34 
1982 07 34.40  20.60  27.50 
1982 08 33.70  21.20  27.45 
1982 09 32.09  21.20  26.65 
1982 10 31.20  19.40  25.30 
1982 11 29.90  18.60  24.25 
1982 12 28.50  17.40  22.95 
1983 01 27.40  15.90  21.65 
1983 02 27.90  15.20  21.55 
1983 03 31.20  15.90  23.55 
1983 04 33.40  19.10  26.25 
1983 05 37.30  21.20  29.25 
1983 06 35.80  22.70  29.25 
1983 07 33.30  21.20  27.25 
1983 08 33.90  21.20  27.55 
1983 09 33.59  21.70  27.65 
1983 10 32.20  20.70  26.45 
1983 11 30.60  17.79  24.20 
1983 12 30.50  17.70  24.10 
1984 01 27.50  14.40  20.95 
1984 02 29.20  15.60  22.40 
1984 03 32.59  17.10  24.84 
1984 04 36.20  18.50  27.35 
1984 05 34.50  21.10  27.80 
1984 06 33.40  21.90  27.65 
1984 07 33.40  20.60  27.00 
1984 08 33.00  20.80  26.90 
1984 09 32.50  21.60  27.05 
1984 10 32.30  20.00  26.15 
1984 11 30.10  15.20  22.65 
1984 12 30.60  14.60  22.60 
1985 01 29.50  13.30  21.40 
1985 02 32.09  16.70  24.40 
1985 03 34.80  17.50  26.15 
1985 04 34.70  19.10  26.90 
1985 05 35.80  20.20  28.00 
1985 06 35.80  20.70  28.25 
1985 07 34.70  20.80  27.75 
1985 08 35.00  20.40  27.70 
1985 09 34.00  20.20  27.10 
1985 10 32.50  19.90  26.20 
1985 11 31.90  17.29  24.59 
1985 12 28.40  17.00  22.70 
1986 01 28.50  14.10  21.30 
1986 02 32.20  15.80  24.00 
1986 03 33.70  15.90  24.80 
1986 04 37.00  17.70  27.35 
1986 05 36.70  20.50  28.60 
1986 06 35.09  21.50  28.30 
1986 07 34.59  20.00  27.30 
1986 08 34.90  20.70  27.80 
1986 09 34.00  20.40  27.20 
1986 10 33.59  19.60  26.59 
1986 11 32.50  19.79  26.15 
1986 12 31.90  16.90  24.40 
1987 01 28.10  12.90  20.50 
1987 02 31.30  12.10  21.70 
1987 03 34.90  16.79  25.85 
1987 07 33.70  21.80  27.75 
1987 08 34.00  20.90  27.45 
1987 09 34.70  21.40  28.05 
1987 10 32.09  17.90  25.00 
1987 11 32.20  17.90  25.05 
1987 12 30.90  15.60  23.25 
1988 01 29.00  16.40  22.70 
1988 02 31.90  15.60  23.75 
1988 03 33.80  17.79  25.80 
1988 04 36.90  18.60  27.75 
1988 05 37.70  19.79  28.75 
1988 06 34.20  21.40  27.80 
1988 07 35.00  21.10  28.05 
1988 08 34.20  21.50  27.85 
1988 09 32.70  21.60  27.15 
1988 10 31.90  19.29  25.59 
1988 11 32.09  17.60  24.84 
1988 12 30.30  15.40  22.84 
1989 01 32.59  16.10  24.34 
1989 02 32.59  15.20  23.90 
1989 03 33.50  16.29  24.90 
1989 04 34.50  17.90  26.20 
1989 05 36.00  19.40  27.70 
1989 06 36.70  21.40  29.05 
1989 07 36.00  20.29  28.15 
1989 08 34.70  21.00  27.85 
1989 09 32.70  21.20  26.95 
1989 11 31.50  18.60  25.05 
1989 12 29.30  14.70  22.00 
1990 01 32.00  16.90  24.45 
1990 02 34.00  16.50  25.25 
1990 03 32.90  16.79  24.85 
1990 04 35.40  18.50  26.95 
1990 05 37.00  20.20  28.60 
1990 06 35.50  20.70  28.10 
1990 07 35.59  20.00  27.80 
1990 08 33.70  20.20  26.95 
1990 09 33.20  20.20  26.70 
1990 10 32.40  18.50  25.45 
1990 11 31.00  17.10  24.05 
1990 12 29.20  15.70  22.45 
1991 01 31.40  16.40  23.90 
1991 02 32.00  13.30  22.65 
1991 03 35.59  16.90  26.25 
1991 04 37.50  20.29  28.90 
1991 05 36.80  20.20  28.50 
1991 06 34.59  20.70  27.65 
1991 07 34.40  20.29  27.35 
1991 09 33.80  19.79  26.80 
1991 10 32.90  18.20  25.55 
1991 11 31.30  15.70  23.50 
1991 12 30.00  16.50  23.25 
1992 01 29.90  14.80  22.35 
1992 02 31.40  13.10  22.25 
1992 03 34.70  15.90  25.30 
1992 04 35.09  18.70  26.90 
1992 05 35.00  21.40  28.20 
1992 06 35.70  20.70  28.20 
1992 07 34.90  19.29  27.10 
1992 08 34.50  18.90  26.70 
1992 09 33.80  19.00  26.40 
1992 10 32.70  19.40  26.05 
1992 11 32.09  17.70  24.90 
1992 12 30.50  13.50  22.00 
1993 01 31.00  14.70  22.85 
1993 02 29.10  12.70  20.90 
1993 03 31.30  12.60  21.95 
1993 04 33.90  14.80  24.35 
1993 05 36.30  16.00  26.15 
1993 06 35.09  19.50  27.30 
1993 07 35.09  19.10  27.09 
1993 08 34.00  18.90  26.45 
1993 09 33.50  19.00  26.25 
1993 10 33.09  18.40  25.75 
1993 11 31.30  16.00  23.65 
1993 12 30.00  13.70  21.85 
1994 01 27.70  16.29  22.00 
1994 02 30.00  17.90  23.95 
1994 03 33.20  17.79  25.50 
1994 04 36.80  20.60  28.70 
1994 05 37.50  21.40  29.45 
1994 06 35.70  20.60  28.15 
1994 07 33.80  19.50  26.65 
1994 08 33.00  19.29  26.15 
1994 09 33.20  19.50  26.35 
1994 10 34.30  20.50  27.40 
1994 11 31.90  18.90  25.40 
1994 12 30.50  16.29  23.40 
1995 01 30.90  15.60  23.25 
1995 02 33.09  14.30  23.70 
1995 03 34.00  17.60  25.80 
1995 04 37.59  21.90  29.75 
1995 05 38.90  23.00  30.95 
1995 06 37.00  22.90  29.95 
1995 07 35.80  21.60  28.70 
1995 08 35.20  22.20  28.70 
1995 09 33.09  21.60  27.34 
1995 10 31.30  21.20  26.25 
1995 11 29.50  16.90  23.20 
1995 12 28.10  16.29  22.20 
1996 01 28.30  15.50  21.90 
1996 02 28.60  15.40  22.00 
1996 03 36.00  18.00  27.00 
1996 04 37.20  20.70  28.95 
1996 05 37.20  22.40  29.80 
1996 06 37.09  23.20  30.15 
1996 07 36.20  23.20  29.70 
1996 08 36.09  23.30  29.70 
1996 09 36.50  23.90  30.20 
1996 10 32.70  22.00  27.35 
1996 11 30.00  19.29  24.65 
1996 12 29.50  18.00  23.75 
1997 01 29.50  18.50  24.00 
1997 02 30.60  20.20  25.40 
1997 03 33.80  21.00  27.40 
1997 04 38.30  22.30  30.30 
1997 05 38.50  23.50  31.00 
1997 06 37.40  24.50  30.95 
1997 07 35.80  23.30  29.55 
1997 08 35.20  23.40  29.30 
1997 09 34.59  22.90  28.75 
1997 10 32.70  22.60  27.65 
1997 11 31.50  21.50  26.50 
1997 12 28.40  18.90  23.65 
1998 01 31.50  15.80  23.65 
1998 02 34.59  15.30  24.95 
1998 03 34.50  16.00  25.25 
1998 04 39.30  20.70  30.00 
1998 05 39.80  22.10  30.95 
1998 06 39.09  25.80  32.44 
1998 07 36.30  24.40  30.34 
1998 08 36.70  24.30  30.50 
1998 09 36.00  24.50  30.25 
1998 10 33.40  22.60  28.00 
1998 11 31.10  21.10  26.10 
1998 12 28.90  19.00  23.95 
1999 01 28.90  18.00  23.45 
1999 02 30.70  18.50  24.60 
1999 03 33.00 -99.99 -99.99 
1999 04 38.59  23.20  30.90 
1999 05 38.00  24.90  31.45 
1999 06 36.09  23.70  29.90 
1999 07 33.70 -99.99 -99.99 
1999 08 34.90  23.20  29.05 
1999 09 34.00  23.80  28.90 
1999 10 30.70  22.20  26.45 
1999 11 28.40  18.50  23.45 
1999 12 27.30  18.20  22.75 
2000 01 27.40  17.50  22.45 
2000 02 30.10  18.50  24.30 
2000 03 34.20  21.00  27.60 
2000 04 35.90  22.60  29.25 
2000 05 37.40  24.20  30.80 
2000 06 34.70  23.60  29.15 
2000 07 37.40  24.10  30.75 
2000 08 34.70  23.10  28.90 
2000 09 33.80  23.90  28.84 
2000 10 31.20  21.70  26.45 
2000 11 30.90  20.20  25.55 
2000 12 26.50  17.90  22.20 
