1966 11 99.99 -99.99   7.30 
1966 12 99.99 -99.99   7.80 
1967 01 99.99 -99.99   5.80 
1967 02 99.99 -99.99   6.30 
1967 03 99.99 -99.99   7.10 
1967 04 99.99 -99.99   7.70 
1967 05 99.99 -99.99  10.60 
1967 06 99.99 -99.99  13.20 
1967 07 99.99 -99.99  16.00 
1967 08 99.99 -99.99  15.40 
1967 09 99.99 -99.99  14.00 
1967 10 99.99 -99.99  12.00 
1967 11 99.99 -99.99   7.80 
1967 12 99.99 -99.99   6.10 
1968 01 99.99 -99.99   5.90 
1968 02 99.99 -99.99   3.80 
1968 03 99.99 -99.99   6.80 
1968 04 99.99 -99.99   8.00 
1968 05 99.99 -99.99   9.70 
1968 06 99.99 -99.99  14.00 
1968 07 99.99 -99.99  15.00 
1968 08 99.99 -99.99  15.40 
1968 09 99.99 -99.99  14.30 
1968 10 99.99 -99.99  13.30 
1968 11 99.99 -99.99   7.90 
1968 12 99.99 -99.99   4.60 
1969 01 99.99 -99.99   6.70 
1969 02 99.99 -99.99   3.50 
1969 03 99.99 -99.99   6.00 
1969 04 99.99 -99.99   8.20 
1969 05 99.99 -99.99  11.10 
1969 06 99.99 -99.99  13.40 
1969 07 99.99 -99.99  16.10 
1969 08 99.99 -99.99  16.10 
1969 09 99.99 -99.99  15.00 
1969 10 99.99 -99.99  13.60 
1969 11 99.99 -99.99   8.00 
1969 12 99.99 -99.99   4.60 
1970 01 99.99 -99.99   5.70 
1970 02 99.99 -99.99   4.80 
1970 03 99.99 -99.99   4.80 
1970 04 99.99 -99.99   7.10 
1970 05 99.99 -99.99  11.40 
1970 06 99.99 -99.99  14.80 
1970 07 99.99 -99.99  14.50 
1970 08 99.99 -99.99  15.40 
1970 09 99.99 -99.99  14.80 
1970 10 99.99 -99.99  11.70 
1970 11 99.99 -99.99   9.39 
1970 12 99.99 -99.99   5.00 
1971 01 99.99 -99.99   5.30 
1971 02 99.99 -99.99   5.30 
1971 03 99.99 -99.99   5.00 
1971 04 99.99 -99.99   7.90 
1971 05 99.99 -99.99  10.90 
1971 06 99.99 -99.99  12.10 
1971 07 99.99 -99.99  16.29 
1971 08 99.99 -99.99  15.50 
1971 09 99.99 -99.99  14.80 
1971 10 99.99 -99.99  12.50 
1971 11 99.99 -99.99   8.00 
1971 12 99.99 -99.99   6.60 
1972 01 99.99 -99.99   4.60 
1972 02 99.99 -99.99   5.50 
1972 03 99.99 -99.99   7.50 
1972 04 99.99 -99.99   8.30 
1972 05 99.99 -99.99  10.00 
1972 06 99.99 -99.99  11.30 
1972 07 99.99 -99.99  14.30 
1972 08 99.99 -99.99  14.90 
1972 09 99.99 -99.99  12.90 
1972 10 99.99 -99.99  11.30 
1972 11 99.99 -99.99   7.80 
1972 12 99.99 -99.99   6.60 
1973 01  6.90 -99.99   5.10 
1973 02  7.30 -99.99   4.80 
1973 03  9.70 -99.99   6.20 
1973 04 10.10 -99.99   6.90 
1973 05 14.80 -99.99  11.00 
1973 06 17.90 -99.99  13.90 
1973 07 18.50 -99.99  14.70 
1973 08 20.10 -99.99  16.40 
1973 09 17.79 -99.99  14.70 
1973 10 14.00 -99.99  10.90 
1973 11 11.20 -99.99   8.30 
1973 12  8.80 -99.99   6.40 
1974 01  9.60 -99.99   6.70 
1974 02  9.39 -99.99   6.30 
1974 03  9.30 -99.99   6.10 
1974 04 11.20 -99.99   8.30 
1974 05 14.30 -99.99  10.40 
1974 06 17.40 -99.99  13.40 
1974 07 18.00 -99.99  14.60 
1974 08 18.70 -99.99  15.20 
1974 09 15.60 -99.99  12.60 
1974 10 10.80 -99.99   8.89 
1974 11 99.99 -99.99   8.50 
1974 12 10.80 -99.99   8.80 
1975 01 10.00 -99.99   7.80 
1975 02  9.89 -99.99   6.40 
1975 03  7.80 -99.99   5.60 
1975 04 11.10 -99.99    .70 
1975 05 12.50 -99.99   9.60 
1975 06 18.50 -99.99  14.00 
1975 07 20.40 -99.99  16.20 
1975 08 21.90 -99.99  17.40 
1975 09 17.60 -99.99  13.90 
1975 10 14.10 -99.99  10.70 
1975 11 10.70 -99.99   7.90 
1975 12  7.60 -99.99   5.80 
1976 01  8.20 -99.99   6.20 
1976 02  8.89 -99.99   5.30 
1976 03  8.80 -99.99   5.40 
1976 04 10.50 -99.99   7.20 
1976 05 15.80 -99.99  11.80 
1976 06 20.70 -99.99  16.10 
1976 07 21.80 -99.99  17.10 
1976 08 21.50 -99.99  17.40 
1976 09 18.10 -99.99  14.20 
1976 10 14.40 -99.99  11.50 
1976 11 10.00 -99.99   8.00 
1976 12  7.00 -99.99   4.50 
1977 01  6.90 -99.99   4.30 
1977 02 10.00 -99.99   6.70 
1977 03 15.50 -99.99   7.60 
1977 04 14.00 -99.99   7.40 
1977 05 14.60 -99.99  10.20 
1977 06 15.90 -99.99  11.90 
1977 07 19.00 -99.99  15.40 
1977 08 18.50 -99.99  15.10 
1977 09 17.00 -99.99  13.70 
1977 10 17.79 -99.99  12.50 
1977 11 15.90 -99.99   8.39 
1977 12 13.70 -99.99   7.10 
1978 01 14.00 -99.99   4.80 
1978 02 10.50 -99.99   4.10 
1978 03 13.90 -99.99   7.10 
1978 04 12.60 -99.99   6.90 
1978 05 15.40 -99.99  11.00 
1978 06 99.99 -99.99  12.80 
1978 07 19.00 -99.99  14.20 
1978 08 18.20 -99.99  14.70 
1978 09 17.60 -99.99  14.00 
1978 10 16.20 -99.99  12.70 
1978 11 14.00 -99.99   9.20 
1978 12 99.99 -99.99   5.60 
1979 01 99.99 -99.99   1.50 
1979 02 99.99 -99.99   3.10 
1979 03 99.99 -99.99   5.60 
1979 04 99.99 -99.99   7.50 
1979 05 99.99 -99.99   9.70 
1979 06 99.99 -99.99  12.60 
1979 07 99.99 -99.99  15.10 
1979 08 99.99 -99.99  14.60 
1979 09 99.99 -99.99  13.80 
1979 10 99.99 -99.99  12.20 
1979 11 99.99 -99.99   8.60 
1979 12 99.99 -99.99   7.40 
1980 01 99.99 -99.99   3.10 
1980 02 99.99 -99.99   6.90 
1980 03 99.99 -99.99   5.80 
1980 04 99.99 -99.99   8.39 
1980 05 99.99 -99.99  10.80 
1980 06 99.99 -99.99  13.30 
1980 07 99.99 -99.99  14.20 
1980 08 99.99 -99.99  15.90 
1980 09 99.99 -99.99  14.80 
1980 10 99.99 -99.99  10.60 
1980 11 99.99 -99.99   7.40 
1980 12 99.99 -99.99   6.30 
1981 01  8.50   4.00   6.25 
1981 02  6.50   1.80   4.15 
1981 03 10.90   6.60   8.75 
1981 04 10.70   5.50   8.10 
1981 05 14.30   8.39  11.35 
1981 06 15.90  10.20  13.04 
1981 07 18.50  12.80  15.65 
1981 08 20.10  12.90  16.50 
1981 09 18.60  11.90  15.25 
1981 10 12.60   7.90  10.25 
1981 11 11.00   6.90   8.95 
1981 12  7.10   2.70   4.90 
1982 01  7.70   3.20   5.45 
1982 02  8.10   3.50   5.80 
1982 03  9.39   3.50   6.45 
1982 04 11.70   5.60   8.64 
1982 05 15.30   8.20  11.75 
1982 06 19.00  12.00  15.50 
1982 07 19.00  13.20  16.10 
1982 08 18.40  13.10  15.75 
1982 09 19.29  12.20  15.75 
1982 10 13.60   8.70  11.15 
1982 11 11.60   7.20   9.39 
1982 12  8.00   3.70   5.85 
1983 01  9.20   5.00   7.10 
1983 02  5.30   1.60   3.45 
1983 03  9.00   4.40   6.70 
1983 04 10.80   4.50   7.65 
1983 05 13.40   7.40  10.40 
1983 06 17.10  11.30  14.20 
1983 07 22.70  14.60  18.65 
1983 08 20.50  14.10  17.29 
1983 09 17.50  12.20  14.85 
1983 10 14.50   9.10  11.80 
1983 11 11.40   7.10   9.25 
1983 12  8.89   3.90   6.39 
1984 01  8.20   3.50   5.85 
1984 02  6.70   2.60   4.64 
1984 03  7.80   2.80   5.30 
1984 04 12.20   4.60   8.39 
1984 05 11.50   6.70   9.10 
1984 06 17.70  10.40  14.05 
1984 07 20.60  12.00  16.29 
1984 08 20.50  13.40  16.95 
1984 09 17.10  11.60  14.35 
1984 10 14.40   8.89  11.65 
1984 11 11.80   7.00   9.39 
1984 12  8.39   3.30   5.85 
1985 01  4.30   -.40   1.95 
1985 02  6.60    .90   3.75 
1985 03  7.90   2.50   5.20 
1985 04 11.80   6.00   8.89 
1985 05 13.70   8.20  10.95 
1985 06 15.80   9.89  12.85 
1985 07 19.50  12.30  15.90 
1985 08 17.90  11.90  14.90 
1985 09 18.40  11.70  15.04 
1985 10 14.50   9.30  11.90 
1985 11  8.80   3.70   6.25 
1985 12  9.39   5.70   7.55 
1986 01  7.60   3.20   5.40 
1986 02  1.70  -1.50    .10 
1986 03  8.70   2.70   5.70 
1986 04  8.60   3.30   5.95 
1986 05 14.20   7.50  10.85 
1986 06 17.70  10.90  14.30 
1986 07 18.50  12.30  15.40 
1986 08 17.29  11.40  14.35 
1986 09 15.20   9.50  12.35 
1986 10 15.40   9.89  12.65 
1986 11 11.30   5.70   8.50 
1986 12  9.50   4.80   7.15 
1987 01  2.50  -1.00    .75 
1987 02  6.60   2.50   4.55 
1987 03  7.40   2.50   4.94 
1987 04 13.60   6.40  10.00 
1987 05 13.00   7.20  10.10 
1987 06 15.60  10.00  12.80 
1987 07 18.50  12.70  15.60 
1987 08 19.29  12.70  16.00 
1987 09 18.29  12.60  15.45 
1987 10 14.20   8.60  11.40 
1987 11 10.00   5.90   7.95 
1987 12  8.10   5.20   6.65 
1988 01  9.10   4.90   7.00 
1988 02  8.00   3.50   5.75 
1988 03  9.10   5.40   7.25 
1988 04 11.10   6.20   8.64 
1988 05 15.30   8.89  12.10 
1988 06 16.79  10.90  13.85 
1988 07 18.20  12.00  15.10 
1988 08 19.10  12.50  15.80 
1988 09 16.79  11.90  14.35 
1988 10 14.60   9.50  12.05 
1988 11 10.20   5.00   7.60 
1988 12 10.00   6.60   8.30 
1989 01  8.20   3.60   5.89 
1989 02  9.39   4.00   6.70 
1989 03 11.50   6.10   8.80 
1989 04  9.89   4.60   7.25 
1989 05 16.90   9.50  13.20 
1989 06 18.10  10.70  14.40 
1989 07 21.00  14.10  17.54 
1989 08 20.80  13.60  17.20 
1989 09 18.79  12.80  15.79 
1989 10 16.10  11.00  13.55 
1989 11 11.00   6.00   8.50 
1989 12  9.30   4.60   6.95 
1990 01  9.20   4.69   6.95 
1990 02 11.30   5.90   8.60 
1990 03 11.60   5.90   8.75 
1990 04 11.30   5.70   8.50 
1990 05 16.60   9.20  12.90 
1990 06 16.40  10.60  13.50 
1990 07 20.20  13.10  16.65 
1990 08 21.70  14.00  17.85 
1990 09 17.90  11.50  14.70 
1990 10 16.00  10.20  13.10 
1990 11 10.20   6.50   8.35 
1990 12  7.60   3.40   5.50 
