1966 11 -7.70 -19.29 -13.50 
1966 12 12.30 -22.20 -17.25 
1967 01 20.29 -31.30 -25.80 
1967 02 -8.20 -21.40 -14.79 
1967 03 -7.00 -25.30 -16.15 
1967 04  6.60 -10.90  -2.14 
1967 05 12.40  -2.00   5.20 
1967 06 19.90   4.19  12.04 
1967 07 17.50   4.30  10.90 
1967 08 18.79   5.20  12.00 
1967 09 12.30   1.70   7.00 
1967 10  3.50  -2.20    .65 
1967 11 -4.69 -11.70  -8.20 
1967 12 11.90 -20.80 -16.34 
1968 01 17.00 -27.30 -22.15 
1968 02 -5.50 -20.60 -13.05 
1968 03   .20 -11.80  -5.80 
1968 04  3.70 -10.20  -3.25 
1968 05 13.50   -.90   6.30 
1968 06 17.10   4.50  10.80 
1968 07 19.40   7.20  13.29 
1968 08 18.40   4.19  11.29 
1968 09 10.00    .80   5.40 
1968 10  2.20  -5.90  -1.85 
1969 04  5.70  -6.60   -.45 
1969 05 12.10   -.20   5.95 
1969 06 22.60   4.69  13.65 
1969 07 17.70   3.20  10.45 
1969 08 13.10  -1.10   6.00 
1969 09 10.20  -3.00   3.60 
1970 05  9.80 -99.99 -99.99 
1970 06 17.00   1.60   9.30 
1970 07 18.40   3.00  10.70 
1970 08 15.90   3.90   9.89 
1970 09 10.60    .70   5.65 
1971 06 18.10   4.10  11.10 
1971 07 22.20   6.60  14.40 
1971 08 19.10 -99.99 -99.99 
1973 05 12.00  -1.10   5.45 
1973 06 17.10   3.80  10.45 
1974 07 18.60   4.80  11.70 
1976 06 99.99   2.90 -99.99 
1977 06 99.99   3.50 -99.99 
1977 08 99.99   6.70 -99.99 
1978 05 12.10   -.70   5.70 
1978 06 18.29   5.00  11.65 
1978 07 20.60   8.20  14.40 
1978 08 18.60   5.80  12.20 
1978 09 14.10   1.50   7.80 
1979 05 11.50   -.90   5.30 
1979 06 16.50   3.80  10.14 
1979 07 19.40   8.20  13.79 
1979 08 21.00   7.50  14.25 
1979 09 13.60   2.09   7.85 
1980 05 14.00  -1.20   6.40 
1980 06 19.40   4.90  12.15 
1980 07 18.70   7.60  13.15 
1980 08 17.10   3.40  10.25 
1980 09 10.10    . 0   5.05 
1981 05 15.70    .60   8.14 
1981 06 15.90   3.00   9.45 
1981 07 20.70   7.20  13.95 
1981 08 18.60   5.00  11.80 
1981 09 10.80   -.10   5.35 
1982 05 10.50  -3.40   3.55 
1982 07 22.70   6.30  14.50 
1982 08 17.29   3.40  10.35 
1982 09 14.40    .80   7.60 
1983 05 11.20  -1.10   5.04 
1983 06 19.50   5.60  12.55 
1983 07 18.90   6.60  12.75 
1983 08 16.29   4.80  10.54 
1983 09  9.70  -1.70   4.00 
1984 05 12.30   -.70   5.80 
1984 06 16.29   4.69  10.50 
1984 07 19.00   5.90  12.45 
1984 08 18.29   5.10  11.70 
1984 09 11.30   -.40   5.45 
1985 07 20.90   6.80  13.85 
1985 08 99.99   4.30 -99.99 
1985 10  2.20  -5.00  -1.40 
1986 06 17.29   2.00   9.64 
1986 07 20.40   6.50  13.45 
1986 09 11.70  -1.00   5.35 
1987 06 14.80   1.60   8.20 
1987 07 20.70   6.50  13.60 
1987 09 99.99    .40 -99.99 
1988 06 18.10   4.10  11.10 
1989 06 19.10   3.20  11.15 
1989 07 23.30   7.90  15.60 
1989 08 21.00   4.90  12.95 
1989 09 13.10    .70   6.90 
1990 06 17.50   5.00  11.25 
1990 07 21.40   6.40  13.90 
1990 08 19.79   5.50  12.65 
1990 09 12.80   1.40   7.10 
1991 05 15.00   1.60   8.30 
1991 06 19.79   3.90  11.85 
1991 07 18.50   6.20  12.35 
1991 08 15.40   3.90   9.64 
1991 09 11.40   3.00   7.20 
1992 05 10.00  -1.20   4.40 
1992 06 19.50   2.60  11.05 
1992 07 18.79   7.00  12.90 
1992 08 17.50   3.70  10.60 
1992 09  4.90  -1.90   1.50 
