1977 01 27.00  14.00  20.50 
1977 02 28.50  16.29  22.40 
1977 03 31.40  18.40  24.90 
1977 04 31.40  19.00  25.20 
1977 05 31.90  20.20  26.05 
1977 06 30.70  21.20  25.95 
1977 07 29.90  20.20  25.05 
1977 08 29.70  20.60  25.15 
1977 10 29.60  19.29  24.45 
1977 11 28.10  17.60  22.85 
1977 12 28.00  16.70  22.35 
1978 01 25.80  14.70  20.25 
1978 02 25.90  13.20  19.54 
1978 03 27.80  16.20  22.00 
1978 04 30.40  18.60  24.50 
1978 06 34.80  21.50  28.15 
1978 07 34.80  20.50  27.65 
1978 08 34.80  21.00  27.90 
1978 09 32.90  21.20  27.05 
1978 10 27.80  19.90  23.84 
1978 11 29.10  20.40  24.75 
1978 12 30.90  19.10  25.00 
1979 01 25.80  17.79  21.80 
1979 02 27.50  17.50  22.50 
1979 03 28.40  19.29  23.84 
1979 04 32.00  21.30  26.65 
1979 05 31.70  21.60  26.65 
1979 06 30.90  21.40  26.15 
1979 07 30.00  21.80  25.90 
1979 08 29.50  21.30  25.40 
1979 09 30.00  22.10  26.05 
1979 10 29.40  20.60  25.00 
1979 11 27.90  17.90  22.90 
1979 12 25.10  15.40  20.25 
1980 02 29.20  13.50  21.35 
1980 03 34.20  18.70  26.45 
1980 04 34.09  18.40  26.25 
1980 05 38.50  22.50  30.50 
1980 06 33.70  21.70  27.70 
1980 07 35.20  21.30  28.25 
1980 08 34.20  21.30  27.75 
1980 09 32.20  21.20  26.70 
1980 10 31.50  21.00  26.25 
1980 11 30.30  18.40  24.34 
1980 12 28.10  13.40  20.75 
1981 01 29.70  11.50  20.60 
1981 02 31.40  15.40  23.40 
1981 03 34.30  16.90  25.59 
1981 04 37.20  17.60  27.40 
1981 05 39.80  20.29  30.05 
1981 06 34.59  22.30  28.45 
1981 07 33.70  20.40  27.05 
1981 08 34.50  21.00  27.75 
1981 09 34.40  20.60  27.50 
1981 10 32.80  19.60  26.20 
1981 11 31.50  14.80  23.15 
1981 12 31.70  14.10  22.90 
1982 01 34.09  15.90  25.00 
1982 02 34.20  17.60  25.90 
1982 03 36.20  16.40  26.30 
1982 04 39.30  20.10  29.70 
1982 05 37.90  19.79  28.85 
1982 06 35.00  21.30  28.15 
1982 07 36.30  19.50  27.90 
1982 08 36.00  20.20  28.10 
1982 09 33.30  20.29  26.80 
1982 10 31.10  19.79  25.45 
1982 11 30.20  18.10  24.15 
1982 12 28.90  16.50  22.70 
1983 01 28.40  15.50  21.95 
1983 02 31.30  14.80  23.05 
1983 03 33.50  15.00  24.25 
1983 04 36.30  18.60  27.45 
1983 05 39.50  19.79  29.65 
1983 06 37.20  22.50  29.85 
1983 07 34.40  20.60  27.50 
1983 08 34.50  20.60  27.55 
1983 09 35.09  20.80  27.95 
1983 10 33.20  20.00  26.60 
1983 11 32.40  16.79  24.60 
1983 12 30.80  16.70  23.75 
1984 01 28.40  13.70  21.05 
1984 02 31.20  14.90  23.05 
1984 03 33.90  16.29  25.10 
1984 04 37.70  17.10  27.40 
1984 05 35.00  20.70  27.85 
1984 06 32.59  20.80  26.70 
1984 07 32.09  20.10  26.09 
1984 08 33.40  20.20  26.80 
1984 09 31.80  21.10  26.45 
1984 10 31.50  19.90  25.70 
1984 11 29.50  15.70  22.60 
1984 12 30.50  13.80  22.15 
1985 01 29.60  12.50  21.05 
1985 02 31.80  14.80  23.30 
1985 03 35.00  17.10  26.05 
1985 04 34.90  16.90  25.90 
1985 05 36.20  18.79  27.50 
1985 06 36.30  19.90  28.09 
1985 07 34.00  20.29  27.15 
1985 08 34.30  19.90  27.09 
1985 09 34.20  20.00  27.10 
1985 10 32.00  19.40  25.70 
1985 11 31.30  16.10  23.70 
1985 12 30.30  17.79  24.05 
1986 01 27.30  13.30  20.29 
1986 02 31.30  15.60  23.45 
1986 03 33.20  14.80  24.00 
1986 04 36.80  16.10  26.45 
1986 05 36.00  18.79  27.40 
1986 06 33.59  20.60  27.09 
1986 07 33.50  18.60  26.05 
1986 08 32.70  19.79  26.25 
1986 09 32.50  19.60  26.05 
1986 10 33.00  18.40  25.70 
1986 11 32.09  18.90  25.50 
1986 12 30.60  16.50  23.55 
1987 01 30.20  13.10  21.65 
1987 02 31.80  14.20  23.00 
1987 03 34.09  17.70  25.90 
1987 04 33.50  15.10  24.30 
1987 05 37.80  19.00  28.40 
1987 06 34.80  22.00  28.40 
1987 07 34.00  20.60  27.30 
1987 08 33.80  19.90  26.84 
1987 09 34.50  20.40  27.45 
1987 10 32.20  17.10  24.65 
1987 11 32.59  17.00  24.80 
1987 12 31.30  14.90  23.09 
1988 01 28.80  15.30  22.05 
1988 02 30.90  14.40  22.65 
1988 03 32.90  16.29  24.60 
1988 04 36.40  18.50  27.45 
1988 05 38.00  18.90  28.45 
1988 06 33.70  20.60  27.15 
1988 07 34.00  19.79  26.90 
1988 08 34.30  20.20  27.25 
1988 09 33.09  20.40  26.75 
1988 10 32.70  17.60  25.15 
1988 11 31.50  15.90  23.70 
1988 12 29.50  14.10  21.80 
1989 01 31.70  14.40  23.05 
1989 02 32.20  14.20  23.20 
1989 03 32.70  16.00  24.35 
1989 04 34.40  17.00  25.70 
1989 05 36.00  18.50  27.25 
1989 06 37.40  20.70  29.05 
1989 07 36.20  19.90  28.05 
1989 08 35.30  19.79  27.55 
1989 09 33.59  20.29  26.95 
1989 10 32.40  17.60  25.00 
1989 11 31.40  17.40  24.40 
1989 12 29.00  11.90  20.45 
1990 01 31.10  16.29  23.70 
1990 02 32.40  14.80  23.60 
1990 03 33.59  15.90  24.75 
1990 04 35.59  17.79  26.70 
1990 05 37.50  20.00  28.75 
1990 06 35.80  20.80  28.30 
1990 07 35.09  19.79  27.45 
1990 08 34.70  19.60  27.15 
1990 09 32.80  19.50  26.15 
1990 10 31.90  18.00  24.95 
1990 11 29.90  15.60  22.75 
1990 12 28.40  14.30  21.35 
1991 01 31.50  15.80  23.65 
1991 02 33.40  12.90  23.15 
1991 03 36.40  16.20  26.30 
1991 04 37.80  19.00  28.40 
1991 05 37.80  19.79  28.80 
1991 06 35.70  19.90  27.80 
1991 07 34.80  19.50  27.15 
1991 08 35.90  18.90  27.40 
1991 09 34.00  19.50  26.75 
1991 10 32.50  18.40  25.45 
1991 11 30.20  15.20  22.70 
1991 12 29.50  16.20  22.85 
1992 01 29.10  14.00  21.55 
1992 02 31.50  13.70  22.60 
1992 03 34.70  15.10  24.90 
1992 04 35.00  17.50  26.25 
1992 05 36.59  16.79  26.70 
1992 06 36.30  19.70  28.00 
1992 07 35.00  19.50  27.25 
1992 08 34.09  18.90  26.50 
1992 09 33.40  18.50  25.95 
1992 10 33.20  18.50  25.85 
1992 11 31.40  16.79  24.09 
1992 12 30.00  13.40  21.70 
1993 01 30.70  14.30  22.50 
1993 02 32.90  11.80  22.35 
1993 03 34.20  12.80  23.50 
1993 04 37.30  18.70  28.00 
1993 05 36.40  19.10  27.75 
1993 06 35.20  19.40  27.30 
1993 07 34.70  18.79  26.75 
1993 08 34.30  18.90  26.59 
1993 09 33.70  18.90  26.30 
1993 10 34.20  17.70  25.95 
1993 11 33.20  15.80  24.50 
1993 12 30.60  12.50  21.55 
1994 01 30.80  13.10  21.95 
1994 02 32.20  12.00  22.10 
1994 03 34.30  14.20  24.25 
1994 04 37.30  18.70  28.00 
1994 05 37.20  18.90  28.05 
1994 06 37.90  18.60  28.25 
1994 07 36.09  18.70  27.40 
1994 08 36.00  18.40  27.20 
1994 09 36.09  18.60  27.34 
1994 10 34.00  16.60  25.30 
1994 11 34.09  18.20  26.15 
1994 12 31.00  15.40  23.20 
1995 01 30.40  12.60  21.50 
1995 02 30.70  12.40  21.55 
1995 03 34.00  15.10  24.55 
1995 04 37.80  19.20  28.50 
1995 05 38.00  19.50  28.75 
1995 06 39.20  18.60  28.90 
1995 07 39.50  18.50  29.00 
1995 08 40.70  18.60  29.65 
1995 09 40.59  18.29  29.45 
1995 10 39.09  21.90  30.50 
1995 11 40.40  19.90  30.15 
1995 12 39.20  18.70  28.95 
1996 01 37.30  16.29  26.80 
1996 02 38.09  14.20  26.15 
1996 03 37.80  14.60  26.20 
1996 04 37.30  17.40  27.34 
1996 05 33.30  18.50  25.90 
1996 06 33.30  19.40  26.34 
1996 07 33.20  18.50  25.85 
1996 08 33.80  18.40  26.09 
1996 09 40.59  18.90  29.75 
1996 10 38.70  17.70  28.20 
1996 11 38.70  15.30  27.00 
1996 12 36.20  11.90  24.05 
1997 01 36.50  12.50  24.50 
1997 02 36.09  14.70  25.40 
1997 03 39.00  17.79  28.40 
1997 04 40.70  18.79  29.75 
1997 05 41.00  19.50  30.25 
1997 06 40.50  19.70  30.10 
1997 07 35.20  19.00  27.10 
1997 08 34.90  18.60  26.75 
1997 09 39.40  19.10  29.25 
1997 10 38.30  18.10  28.20 
1997 11 37.40  17.70  27.55 
1997 12 35.20  14.20  24.70 
1998 01 34.09  15.00  24.55 
1998 02 35.00  15.20  25.10 
1998 03 38.40  17.70  28.05 
1998 04 39.70  19.10  29.40 
1998 05 41.10  20.29  30.70 
1998 06 40.90  20.60  30.75 
1998 07 40.00  20.00  30.00 
1998 08 40.59  19.90  30.25 
1998 09 39.70  19.90  29.80 
1998 10 39.00  19.20  29.10 
1998 11 38.90  18.50  28.70 
1998 12 36.00  14.70  25.35 
1999 01 37.00  15.70  26.35 
1999 02 38.00  17.70  27.85 
1999 03 38.40  18.60  28.50 
1999 04 40.30  20.10  30.20 
1999 05 40.20  19.79  30.00 
1999 06 38.40  18.60  28.50 
1999 07 37.50  17.70  27.60 
1999 08 38.90  18.70  28.80 
1999 09 38.30  18.29  28.30 
1999 10 37.40  17.20  27.30 
1999 11 35.59  16.29  25.95 
1999 12 33.59  15.00  24.30 
2000 01 32.00  14.00  23.00 
2000 02 32.50  15.50  24.00 
2000 03 35.00  17.70  26.35 
2000 04 35.80  19.00  27.40 
2000 05 38.40  19.20  28.80 
2000 06 37.80  18.79  28.30 
2000 07 37.20  18.90  28.05 
2000 08 37.00  18.10  27.55 
2000 09 37.20  18.60  27.90 
2000 10 37.30  18.00  27.65 
2000 11 36.80  17.29  27.05 
2000 12 34.70  14.20  24.45 
