1970 01 99.99  20.27 -99.99 
1970 02 28.57  20.40  24.48 
1970 03 29.02  18.45  23.73 
1970 04 25.98  15.98  20.98 
1970 05 22.75  10.12  16.43 
1970 06 21.85   7.95  14.90 
1970 07 20.58   5.60  13.09 
1970 08 23.12   7.64  15.38 
1970 09 24.28  10.85  17.56 
1970 10 27.51  14.49  21.00 
1970 11 27.60  17.35  22.47 
1970 12 28.81  20.27  24.54 
1971 01 29.95  20.95  25.45 
1971 02 27.43  21.41  24.42 
1971 03 26.22  19.14  22.68 
1971 04 25.28  15.27  20.27 
1971 05 23.43  11.15  17.29 
1971 06 20.54   8.13  14.33 
1971 07 19.90   6.96  13.43 
1971 08 21.73   9.99  15.86 
1971 09 24.50  12.87  18.68 
1971 10 28.74  16.44  22.59 
1971 11 30.05  16.92  23.48 
1971 12 29.21  19.25  24.23 
1972 01 28.29  20.57  24.43 
1972 02 26.28  19.59  22.93 
1972 03 27.50  18.39  22.94 
1972 04 25.23  15.37  20.29 
1972 05 21.30  13.77  17.53 
1972 06 99.99  10.79 -99.99 
1972 07 19.98   5.84  12.91 
1972 08 22.51   9.02  15.76 
1972 09 25.65  11.98  18.81 
1972 10 27.14  15.65  21.39 
1972 11 27.50  18.46  22.98 
1972 12 31.11  19.70  25.40 
1973 01 29.99  22.25  26.12 
1973 02 29.29  21.49  25.39 
1973 03 29.41  20.03  24.72 
1973 04 27.23  16.40  21.81 
1973 05 25.45  13.94  19.69 
1973 06 21.38  10.53  15.95 
1973 07 19.37  11.76  15.57 
1973 08 21.42  11.06  16.24 
1974 03 26.95  20.07  23.51 
1974 04 26.10  17.03  21.56 
1974 05 21.58  13.58  17.58 
1974 06 19.99   9.22  14.60 
1974 07 20.32   7.01  13.66 
1976 02 26.99  19.95  23.47 
1976 03 27.90  20.24  24.07 
1976 04 24.40  16.00  20.20 
1976 05 22.40 -99.99 -99.99 
1976 06 20.60   9.80  15.20 
1976 07 20.10   9.39  14.75 
1976 08 21.30   6.80  14.04 
1976 09 23.50  10.40  16.95 
1976 10 26.10  14.80  20.45 
1976 11 29.40  17.29  23.34 
1976 12 32.20  20.50  26.35 
1977 03 28.70  20.00  24.35 
1977 05 23.80  13.40  18.59 
1977 06 20.00   8.50  14.25 
1977 07 20.20   7.20  13.70 
1977 08 24.00   7.30  15.65 
1977 09 26.00  11.30  18.65 
1977 10 29.70  15.30  22.50 
1977 11 31.60  18.90  25.25 
1978 01 32.40 -99.99 -99.99 
1978 03 29.00  19.10  24.05 
1978 05 22.60  12.80  17.70 
1978 06 18.90   9.39  14.15 
1978 07 19.60   7.20  13.40 
1978 08 19.79   9.00  14.40 
1978 09 99.99  12.20 -99.99 
1978 10 25.60  13.70  19.65 
1978 11 27.90  16.60  22.25 
1978 12 99.99  18.20 -99.99 
1979 01 30.00  21.20  25.60 
1979 03 29.20  18.90  24.05 
1979 05 22.10  10.40  16.25 
1979 07 20.50   6.70  13.60 
1979 08 22.70   8.89  15.80 
1979 09 24.90 -99.99 -99.99 
1979 10 27.10  14.70  20.90 
1979 11 31.00  18.40  24.70 
1980 01 32.50  20.70  26.60 
1980 02 99.99  21.00 -99.99 
1980 03 30.20  17.70  23.95 
1980 05 99.99  14.80 -99.99 
1980 06 21.00 -99.99 -99.99 
1980 07 19.29   7.60  13.45 
1980 09 28.50  11.50  20.00 
1980 10 28.40  15.90  22.15 
1980 11 30.10 -99.99 -99.99 
1980 12 28.80  18.50  23.65 
1981 02 30.50 -99.99 -99.99 
1981 03 29.90  18.70  24.30 
1981 06 19.90   8.89  14.40 
1981 07 20.20   8.80  14.50 
1981 08 22.00 -99.99 -99.99 
1981 09 26.10  11.80  18.95 
1981 10 27.50  13.50  20.50 
1981 11 27.90  17.10  22.50 
1981 12 30.90  20.20  25.55 
1982 01 30.10  21.70  25.90 
1982 03 28.10  20.00  24.05 
1982 04 25.60  16.29  20.95 
1982 05 23.70 -99.99 -99.99 
1982 06 19.10   6.70  12.90 
1983 03 29.30  19.29  24.30 
1983 05 22.30 -99.99 -99.99 
1983 07 18.29 -99.99 -99.99 
1983 08 20.29 -99.99 -99.99 
1983 09 26.50 -99.99 -99.99 
1983 10 26.10 -99.99 -99.99 
1984 05 22.60  11.40  17.00 
1984 07 18.50 -99.99 -99.99 
1984 10 25.20  14.60  19.90 
1985 01 31.90  19.20  25.55 
1985 05 99.99  13.40 -99.99 
1985 07 20.00   8.70  14.35 
1985 10 99.99  14.20 -99.99 
1986 02 32.49 -99.99 -99.99 
1986 07 99.99   9.89 -99.99 
1986 12 30.62 -99.99 -99.99 
1988 03 99.99  17.50 -99.99 
1989 03 99.99  20.20 -99.99 
1989 08 99.99   7.30 -99.99 
