1972 03 27.40  18.79  23.09 
1972 04 19.90  16.90  18.40 
1972 07 24.60   8.00  16.29 
1972 08 25.60  10.10  17.85 
1972 09 28.80  13.30  21.05 
1972 11 30.20  17.29  23.75 
1972 12 34.20  21.10  27.65 
1973 01 34.40  21.70  28.05 
1973 02 32.90  20.60  26.75 
1973 03 32.59  21.30  26.95 
1973 06 24.40  11.10  17.75 
1973 07 24.10  10.30  17.20 
1973 09 29.00  15.50  22.25 
1973 10 27.90  16.90  22.40 
1973 11 28.10  18.20  23.15 
1973 12 28.20  19.00  23.60 
1974 01 30.20  20.70  25.45 
1974 02 29.40  20.50  24.95 
1974 03 28.30  19.10  23.70 
1974 04 25.10  15.20  20.15 
1974 05 26.20  11.20  18.70 
1974 06 25.60   8.20  16.90 
1974 07 24.30   9.10  16.70 
1974 08 26.70  10.90  18.79 
1974 09 27.90  12.30  20.10 
1974 10 30.80  16.70  23.75 
1974 11 29.60  18.79  24.20 
1974 12 29.70  19.40  24.55 
1975 01 31.80  20.00  25.90 
1975 02 28.80  20.00  24.40 
1975 05 26.80  13.00  19.90 
1975 11 31.40  18.50  24.95 
1975 12 30.00  19.79  24.90 
1976 01 28.80  19.00  23.90 
1976 02 29.20  18.50  23.85 
1976 03 28.00  17.70  22.85 
1976 04 26.80  14.10  20.45 
1976 05 23.40  10.90  17.15 
1976 06 24.00   9.60  16.79 
1976 07 24.30   8.00  16.15 
1976 08 25.00   9.00  17.00 
1976 09 28.90  13.30  21.10 
1976 11 31.10  19.00  25.05 
1976 12 34.00  20.60  27.30 
1977 01 34.90  21.90  28.40 
1977 02 29.00  20.70  24.85 
1977 03 26.30  18.00  22.15 
1977 04 28.20  16.29  22.25 
1977 05 27.70  11.60  19.65 
1977 06 25.90   9.60  17.75 
1977 07 24.30   8.70  16.50 
1977 08 25.50  11.10  18.29 
1977 09 27.90  15.40  21.65 
1977 10 30.40  17.40  23.90 
1977 11 31.30  19.10  25.20 
1977 12 30.80  20.80  25.80 
1978 01 29.10  20.40  24.75 
1978 02 29.20  19.90  24.55 
1978 03 29.10  20.29  24.70 
1978 04 27.10  16.29  21.70 
1978 05 27.10  12.10  19.60 
1978 06 23.90   9.30  16.60 
1978 07 23.70   8.80  16.25 
1978 08 29.10  13.20  21.15 
1978 09 28.90  15.40  22.15 
1978 10 28.30  17.10  22.70 
1978 11 29.40  17.90  23.65 
1978 12 31.00  19.10  25.05 
1979 01 31.20  19.60  25.40 
1979 02 32.50  21.50  27.00 
1979 03 30.70  18.90  24.80 
1979 04 29.50  16.70  23.10 
1979 05 26.60  13.00  19.79 
1979 06 24.90  10.90  17.90 
1979 07 23.30   9.00  16.15 
1979 09 26.70  14.70  20.70 
1979 10 30.40  17.50  23.95 
1979 11 30.20  18.79  24.50 
1979 12 31.20  18.79  25.00 
1980 01 31.00  18.90  24.95 
1980 02 29.80  19.20  24.50 
1980 03 29.00  19.90  24.45 
1980 05 27.30  11.80  19.54 
1980 06 23.60   7.90  15.75 
1980 07 22.80   8.70  15.75 
1980 08 26.50  11.40  18.95 
1980 09 25.80  14.00  19.90 
1980 10 28.40  15.60  22.00 
1980 11 29.90  19.00  24.45 
1981 01 30.90  21.20  26.05 
1981 02 28.90  19.79  24.34 
1981 03 28.40  18.20  23.30 
1981 04 28.20  15.90  22.05 
1981 05 24.50  12.00  18.25 
1981 06 24.40   7.90  16.15 
1981 07 24.90   9.20  17.04 
1981 08 23.90  10.50  17.20 
1981 09 25.20  12.70  18.95 
1981 11 32.40  18.50  25.45 
1982 01 32.40  20.29  26.35 
1982 02 32.20  20.20  26.20 
1982 04 27.80  13.70  20.75 
1982 05 27.30  11.90  19.59 
1982 06 24.50   7.60  16.04 
1982 07 24.30  11.30  17.79 
1982 08 26.90  12.90  19.90 
1983 01 34.00  22.00  28.00 
1983 05 27.60  15.30  21.45 
1983 06 25.40  12.50  18.95 
1983 07 24.90  11.80  18.35 
1983 08 25.40  10.90  18.15 
1983 09 30.70  15.10  22.90 
1983 10 28.10  16.50  22.30 
1983 11 32.20  20.00  26.10 
1983 12 32.30  20.00  26.15 
1984 01 33.80  20.60  27.20 
1984 02 31.10  20.10  25.60 
1984 03 30.70  19.29  25.00 
1984 04 28.70  16.79  22.75 
1984 05 28.20  14.80  21.50 
1984 06 23.80  11.80  17.79 
1984 07 23.20  11.60  17.40 
1984 08 25.30  13.20  19.25 
1984 09 28.20  15.70  21.95 
1984 10 28.70  13.70  21.20 
1984 11 27.30  18.40  22.84 
1984 12 31.70  20.80  26.25 
1985 01 31.20  20.80  26.00 
1985 02 30.20  20.60  25.40 
1985 03 30.70  19.50  25.10 
1985 04 29.10  15.30  22.20 
1985 05 25.80  12.50  19.15 
1985 06 24.80  10.50  17.65 
1985 07 24.80  11.10  17.95 
1985 08 26.40  12.30  19.35 
1985 09 27.30  15.20  21.25 
1985 10 30.00  17.40  23.70 
1985 11 30.80  17.79  24.30 
1985 12 30.80  19.50  25.15 
1986 01 31.80  20.60  26.20 
1986 02 32.09  19.50  25.80 
1986 03 33.00  19.00  26.00 
1986 04 28.40  17.29  22.84 
1986 05 27.40  13.10  20.25 
1986 06 25.00   8.60  16.79 
1986 07 24.90   7.40  16.15 
1986 08 28.20  10.10  19.15 
1986 09 28.10  13.60  20.85 
1986 10 28.90  15.90  22.40 
1986 11 30.50  17.60  24.05 
1986 12 31.50  20.40  25.95 
1987 01 32.50  20.60  26.55 
1987 02 34.09  20.70  27.40 
