1956 10 29.66  16.33  22.99 
1956 11 29.89  18.33  24.11 
1956 12 30.61  18.89  24.75 
1957 01 31.05  18.89  24.97 
1957 02 29.94  17.94  23.94 
1957 03 30.83  18.94  24.88 
1957 04 29.05  18.94  23.99 
1957 05 24.78  17.56  21.17 
1957 06 25.33  15.83  20.58 
1957 07 25.28  14.94  20.11 
1957 08 27.33  14.94  21.13 
1957 09 29.77  15.56  22.66 
1957 10 30.39  17.33  23.86 
1957 11 29.44  17.89  23.66 
1957 12 29.55  18.71  24.13 
1958 01 32.55  18.83  25.68 
1958 02 32.27  18.67  25.47 
1958 03 30.77  19.06  24.91 
1958 04 30.00  19.17  24.58 
1958 05 27.55  17.50  22.52 
1958 06 26.83  15.94  21.38 
1958 07 26.11  15.28  20.69 
1958 08 27.78  15.22  21.50 
1958 09 30.44  16.06  23.25 
1958 10 31.66  16.61  24.13 
1958 11 33.05  19.00  26.02 
1958 12 31.11  19.83  25.47 
1959 01 31.83  20.28  26.05 
1959 02 33.83  20.39  27.11 
1959 03 32.43  19.94  26.18 
1959 04 29.66  19.11  24.38 
1959 05 27.78  17.71  22.75 
1959 06 27.44  15.83  21.63 
1959 07 25.61  15.17  20.39 
1959 08 26.33  15.11  20.72 
1959 09 28.44  15.78  22.11 
1959 10 30.55  16.89  23.72 
1959 11 32.16  18.78  25.47 
1959 12 30.94  19.50  25.22 
1960 01 31.00  19.11  25.05 
1960 02 32.72  19.21  25.97 
1960 03 31.22  19.61  25.41 
1960 04 26.78  18.50  22.64 
1960 05 26.11  17.11  21.61 
1960 06 25.89  15.72  20.80 
1960 07 25.89  14.89  20.39 
1960 08 26.72  13.78  20.25 
1960 09 28.39  15.00  21.69 
1960 10 29.22  17.11  23.16 
1960 11 31.39  17.89  24.64 
1960 12 32.22  19.39  25.80 
1961 01 33.40  19.90  26.65 
1961 02 31.90  19.20  25.55 
1961 03 33.00  20.29  26.65 
1961 04 31.40  19.70  25.55 
1961 05 30.40  18.79  24.59 
1961 06 28.50  17.10  22.80 
1961 07 26.00  16.40  21.20 
1961 08 26.60  16.00  21.30 
1961 09 27.10  16.50  21.80 
1961 10 28.30  17.79  23.05 
1961 11 26.70  18.10  22.40 
1961 12 29.00  19.40  24.20 
1962 01 28.60  18.90  23.75 
1962 02 31.00  18.90  24.95 
1962 03 31.50  19.60  25.55 
1962 04 30.90  19.20  25.05 
1962 05 27.40  17.29  22.34 
1962 06 27.50  15.90  21.70 
1962 07 26.00  15.40  20.70 
1962 08 27.20  15.70  21.45 
1962 09 28.70  15.80  22.25 
1962 10 30.90  17.60  24.25 
1962 11 31.40  19.00  25.20 
1962 12 29.50  19.50  24.50 
1964 01 31.20  19.40  25.30 
1964 02 33.40  19.79  26.60 
1964 03 31.60  20.10  25.85 
1964 04 28.30  19.29  23.80 
1964 05 26.00  17.10  21.55 
1964 06 25.90  15.90  20.90 
1964 07 25.50  14.40  19.95 
1964 08 25.80  14.90  20.34 
1964 09 27.80  15.30  21.55 
1964 10 29.00  16.20  22.60 
1964 11 32.00  18.60  25.30 
1964 12 29.90  18.70  24.30 
1965 01 29.70  18.40  24.05 
1965 02 33.59  18.70  26.15 
1965 03 32.70  19.10  25.90 
1965 04 29.50  18.79  24.15 
1965 05 27.30  16.79  22.05 
1965 06 26.60  14.80  20.70 
1965 07 25.60  14.50  20.04 
1965 08 26.50  14.80  20.65 
1965 09 28.30  15.70  22.00 
1965 10 29.20  17.20  23.20 
1965 11 29.30  18.50  23.90 
1965 12 30.60  19.29  24.95 
1966 01 32.30  19.60  25.95 
1966 02 32.40  19.70  26.05 
1966 03 29.60  19.10  24.35 
1966 04 29.00  18.60  23.80 
1966 05 27.50  17.00  22.25 
1966 06 25.40  15.70  20.55 
1966 07 26.40  14.90  20.65 
1966 08 27.40  15.10  21.25 
1966 09 29.10  16.00  22.55 
1966 10 30.00  16.70  23.35 
1966 11 30.30  18.40  24.34 
1966 12 99.99  19.10 -99.99 
1967 01 33.70  19.00  26.35 
1967 02 33.70  19.50  26.60 
1967 03 33.50  19.90  26.70 
1967 04 29.40  19.29  24.34 
1967 05 25.50  18.00  21.75 
1967 06 25.50  16.00  20.75 
1967 07 25.40  15.70  20.55 
1967 08 25.40  14.60  20.00 
1967 09 26.60  14.70  20.65 
1967 10 28.60  16.70  22.65 
1967 11 30.50  18.40  24.45 
1967 12 32.20  19.29  25.75 
1968 01 33.40  18.79  26.10 
1968 02 31.50  18.40  24.95 
1968 03 28.00  18.00  23.00 
1968 04 27.10  18.40  22.75 
1968 05 25.20  16.90  21.05 
1968 06 24.20  15.10  19.65 
1968 07 24.50  14.20  19.35 
1968 08 25.90  14.00  19.95 
1968 09 28.50  14.60  21.55 
1968 10 30.00  17.00  23.50 
1968 11 29.80  17.70  23.75 
1968 12 30.00  18.70  24.35 
1969 01 32.40  19.00  25.70 
1969 02 30.60  18.70  24.65 
1969 03 31.70  19.50  25.60 
1969 04 31.90  19.70  25.80 
1969 05 28.60  18.00  23.30 
1969 06 27.30  15.70  21.50 
1969 07 27.20  15.60  21.40 
1969 08 27.30  15.10  21.20 
1969 09 29.80  16.00  22.90 
1969 10 30.20  17.50  23.85 
1969 11 30.60  18.50  24.55 
1969 12 32.09  19.60  25.84 
1970 01 30.70  18.90  24.80 
1970 02 32.30  19.79  26.05 
1970 03 31.90  19.60  25.75 
1970 04 27.80  19.00  23.40 
1970 05 26.40  17.10  21.75 
1970 06 26.90  15.90  21.40 
1970 07 26.50  14.90  20.70 
1970 08 27.20  14.80  21.00 
1970 09 29.30  15.30  22.30 
1970 10 31.30  16.70  24.00 
1970 11 32.70  19.20  25.95 
1970 12 30.50  18.79  24.65 
1971 01 31.30  18.90  25.09 
1971 02 32.70  18.60  25.65 
1971 03 32.80  18.79  25.80 
1971 04 30.60  19.50  25.05 
1971 05 27.40  17.50  22.45 
1971 06 26.10  15.00  20.55 
1971 07 26.00  15.30  20.65 
1971 08 26.90  14.50  20.70 
1971 09 29.00  15.30  22.15 
1971 10 30.60  16.70  23.65 
1971 11 32.50  18.50  25.50 
1971 12 30.50  18.00  24.25 
1972 01 30.20  17.79  24.00 
1972 02 30.50  19.50  25.00 
1972 03 30.90  19.10  25.00 
1972 04 29.80  19.10  24.45 
1972 05 25.50  19.10  22.30 
1972 06 25.60  15.60  20.60 
1972 07 25.60  15.40  20.50 
1972 08 26.70  15.20  20.95 
1972 09 28.40  16.10  22.25 
1972 10 29.60  18.10  23.85 
1972 11 28.50  19.00  23.75 
1972 12 30.80  19.70  25.25 
1973 01 99.99  19.79 -99.99 
1973 02 99.99  20.10 -99.99 
1973 03 99.99  20.20 -99.99 
1973 04 99.99  19.40 -99.99 
1973 05 99.99  17.79 -99.99 
1973 06 99.99  16.29 -99.99 
1973 07 99.99  14.80 -99.99 
1973 08 99.99  17.60 -99.99 
1973 09 99.99  15.80 -99.99 
1973 10 30.90  17.90  24.40 
1973 11 29.90  19.00  24.45 
1973 12 30.30  19.10  24.70 
1974 01 31.70  19.10  25.40 
1974 02 32.70  19.50  26.10 
1974 03 30.90  19.20  25.05 
1974 04 28.90  19.60  24.25 
1974 05 28.20  18.29  23.25 
1974 06 25.90  16.90  21.40 
1974 07 25.10  15.60  20.35 
1974 08 27.10  15.60  21.35 
1974 09 27.70  15.30  21.50 
1974 10 30.10  16.70  23.40 
1974 11 30.70  19.29  25.00 
1974 12 32.00  20.00  26.00 
1979 01 26.60  20.00  23.30 
1979 02 28.80  20.90  24.84 
1979 03 28.50  21.20  24.85 
1979 04 26.20  20.10  23.15 
1979 05 24.70  18.29  21.50 
1979 06 23.00  15.60  19.29 
1979 07 23.20  15.40  19.29 
1979 09 99.99  16.79 -99.99 
1979 10 99.99  18.50 -99.99 
1979 11 99.99  19.79 -99.99 
1979 12 28.90  20.10  24.50 
1980 01 31.60  20.40  26.00 
1980 02 29.00  20.10  24.55 
1980 03 30.50  19.79  25.15 
1980 04 99.99  20.00 -99.99 
1980 05 99.99  18.50 -99.99 
1980 06 24.90  15.70  20.29 
1981 06 99.99  15.80 -99.99 
1983 03 31.30  20.50  25.90 
1983 04 30.50  20.20  25.35 
1983 05 27.00  18.79  22.90 
1983 06 25.90  16.90  21.40 
1983 07 26.20  16.00  21.10 
1983 08 26.50  16.10  21.30 
1983 09 27.60  16.70  22.15 
1983 10 29.60  17.90  23.75 
1983 11 31.00  19.00  25.00 
1983 12 29.10  18.29  23.70 
1984 03 30.80  19.90  25.34 
1984 04 28.50  19.60  24.05 
1984 06 23.80  15.70  19.75 
1984 07 23.60  15.60  19.60 
1984 08 23.60  14.60  19.10 
1984 09 27.30  15.50  21.40 
1984 10 28.40  18.10  23.25 
1984 11 28.30  19.20  23.75 
1984 12 28.20  19.60  23.90 
1985 02 28.20  19.90  24.05 
1985 03 30.90  20.00  25.45 
1985 04 28.90  19.60  24.25 
1985 05 25.30  17.79  21.55 
1985 06 25.00  16.29  20.65 
1985 07 24.30  15.50  19.90 
1985 08 24.50  15.40  19.95 
1985 09 27.40  16.50  21.95 
1985 10 27.40  17.20  22.30 
1985 11 30.00  19.00  24.50 
1985 12 29.00  20.00  24.50 
1986 01 28.90  19.50  24.20 
1986 02 31.60  19.50  25.55 
1986 03 31.90  20.10  26.00 
1986 04 27.00  19.20  23.10 
1986 05 24.90  18.10  21.50 
1986 06 24.10  15.40  19.75 
1986 07 24.80  14.50  19.65 
1986 08 25.80  15.00  20.40 
1986 09 28.30  15.60  21.95 
1986 10 30.50  18.10  24.30 
1986 11 29.80  18.79  24.30 
1986 12 28.20  20.20  24.20 
1987 02 99.99  19.40 -99.99 
1987 03 31.40  20.04  25.72 
1987 04 29.80  19.70  24.75 
1987 05 26.10  17.95  22.02 
1987 06 25.70  15.30  20.50 
1987 07 25.70  15.10  20.40 
1987 08 25.20  15.15  20.17 
1987 09 28.20  15.80  22.00 
1987 10 29.95  17.00  23.47 
1987 11 29.80  18.10  23.95 
1987 12 31.20  19.70  25.45 
1988 01 31.60  19.40  25.50 
1988 02 32.90  19.35  26.12 
1988 03 31.35  19.15  25.25 
1988 04 28.30  18.40  23.34 
1988 05 28.05  16.75  22.40 
1988 06 25.85  15.50  20.67 
1988 07 26.55  15.00  20.77 
1988 08 26.70  14.70  20.70 
1988 09 26.35  14.60  20.47 
1988 10 29.60  15.90  22.75 
1988 11 29.40  17.50  23.45 
1988 12 28.70  17.60  23.15 
1989 01 27.95  17.90  22.92 
1989 02 30.85  17.45  24.15 
1989 03 30.90  17.54  24.22 
1989 04 26.50  16.85  21.67 
1989 05 24.50  15.65  20.07 
1989 06 24.55  14.35  19.45 
1989 07 99.99  14.30 -99.99 
1989 08 23.90  13.30  18.60 
1989 09 26.40  14.20  20.29 
1989 10 27.70  15.70  21.70 
1989 11 28.90  17.10  23.00 
1989 12 28.90  17.50  23.20 
1990 01 29.00  16.70  22.85 
1990 02 30.20  17.20  23.70 
1990 03 99.99  16.50 -99.99 
1990 04 26.30  17.29  21.80 
1990 05 26.30  16.60  21.45 
1990 06 99.99  14.10 -99.99 
1990 07 25.10  13.60  19.35 
1990 08 99.99  13.80 -99.99 
1990 10 28.70  16.10  22.40 
1990 11 28.60  17.50  23.05 
1990 12 99.99  18.29 -99.99 
1991 01 31.40  18.70  25.05 
1991 02 31.90  18.29  25.09 
1991 03 32.20  18.29  25.25 
1991 05 99.99  16.10 -99.99 
1991 06 25.20  14.70  19.95 
1991 07 24.90  14.80  19.85 
1991 08 99.99  15.50 -99.99 
1991 12 99.99  19.79 -99.99 
1992 01 99.99  19.00 -99.99 
1992 04 99.99  19.20 -99.99 
1992 05 99.99  18.10 -99.99 
1992 06 99.99  16.50 -99.99 
1992 07 23.90  15.00  19.45 
1992 08 25.10  14.80  19.95 
1992 09 99.99  15.90 -99.99 
1993 04 99.99  19.29 -99.99 
1993 05 27.20  17.79  22.50 
1993 06 25.50  15.90  20.70 
1993 07 24.70  14.90  19.79 
1993 08 25.00  15.00  20.00 
1993 09 26.20  15.00  20.60 
1993 10 27.70 -99.99 -99.99 
1993 11 30.70  18.60  24.65 
1993 12 30.30  19.10  24.70 
1994 01 31.30  19.70  25.50 
1994 02 30.70  19.50  25.10 
1994 03 30.00  19.20  24.60 
1994 04 28.10  18.20  23.15 
1994 05 24.60  17.00  20.80 
1994 09 27.90 -99.99 -99.99 
1994 10 29.30  17.90  23.59 
1994 11 28.00  18.20  23.10 
1994 12 28.10 -99.99 -99.99 
1995 01 30.40 -99.99 -99.99 
1995 02 30.90  18.70  24.80 
1995 03 29.50 -99.99 -99.99 
1995 04 27.80  18.70  23.25 
1995 05 25.80  17.50  21.65 
1995 06 25.30  15.60  20.45 
1995 07 24.80  15.00  19.90 
1995 08 24.50  14.60  19.54 
1995 09 27.90 -99.99 -99.99 
1995 11 29.10  17.60  23.35 
1995 12 30.10 -99.99 -99.99 
1996 03 30.20  19.00  24.60 
1996 04 99.99  17.60 -99.99 
1996 05 25.30  16.60  20.95 
1996 08 24.40 -99.99 -99.99 
1996 09 26.50  16.40  21.45 
1996 10 27.80  17.20  22.50 
1996 11 29.50  18.90  24.20 
1997 03 29.80  19.79  24.80 
1997 12 26.10 -99.99 -99.99 
1998 05 23.70  17.79  20.75 
1998 06 22.00  17.70  19.85 
1998 10 27.50 -99.99 -99.99 
1998 11 26.50  19.00  22.75 
1998 12 28.40  20.00  24.20 
1999 01 28.50  20.20  24.35 
2000 10 23.10 -99.99 -99.99 
2000 11 27.10 -99.99 -99.99 
2001 01 26.30 -99.99 -99.99 
2001 02 28.30 -99.99 -99.99 
2001 03 27.80 -99.99 -99.99 
2001 04 25.80 -99.99 -99.99 
2001 06 22.00 -99.99 -99.99 
