1969 07  22.85   9.64  16.24 
1969 08  25.70  10.00  17.85 
1969 09  16.20   4.54  10.37 
1969 10 -99.99  -3.57 -99.99 
1969 12  -3.33 -14.28  -8.80 
1970 02  -2.33 -99.99 -99.99 
1970 03  -3.81 -17.36 -10.58 
1970 04   7.81  -2.34   2.73 
1970 06  25.29 -99.99 -99.99 
1970 07 -99.99  12.35 -99.99 
1970 08  25.22   9.08  17.15 
1970 09  17.20   1.75   9.47 
1970 10   9.54  -4.15   2.69 
1970 11  -5.69 -13.24  -9.46 
1970 12 -11.13 -26.74 -18.93 
1971 01 -14.33 -26.84 -20.58 
1971 02  -3.69 -19.58 -11.63 
1971 03  -3.02 -16.25  -9.63 
1971 04 -99.99  -4.75 -99.99 
1971 05  19.83   5.14  12.48 
1971 06  21.18   9.08  15.13 
1971 07  22.86  10.41  16.63 
1971 08  28.10  12.20  20.15 
1971 09  16.61   3.26   9.93 
1971 10  11.07  -2.89   4.08 
1971 11  -0.03  -8.75  -4.39 
1972 01 -99.99 -27.15 -99.99 
1972 02 -11.99 -23.37 -17.68 
1972 03   -.43 -13.08  -6.75 
1972 04  10.14  -3.02   3.56 
1972 05  19.61   4.67  12.14 
1972 06  22.75   9.93  16.34 
1972 07  20.91   9.60  15.26 
1972 08  25.40  11.64  18.52 
1972 09  12.24   0.84   6.54 
1972 10   8.77  -4.34   2.21 
1972 11   0.50  -6.63  -3.06 
1973 02  -4.87 -17.01 -10.94 
1973 04 -99.99  -2.79 -99.99 
1973 05  16.27   3.01   9.64 
1973 06  21.02   8.41  14.71 
1973 07  23.35  10.50  16.92 
1973 08  23.30  10.60  16.95 
1973 09  16.95   3.44  10.20 
1973 10  11.25  -1.74   4.75 
1973 11  -7.99 -16.35 -12.17 
1973 12  -8.07 -18.56 -13.31 
1974 03  -4.89 -17.84 -11.36 
1974 04   8.95  -1.84   3.55 
1974 05  13.00   2.63   7.81 
1974 06  21.95  10.07  16.01 
1974 07  23.65  10.67  17.16 
1974 08  20.01   8.33  14.17 
1974 09 -99.99   2.87 -99.99 
1974 10 -99.99  -1.93 -99.99 
1974 11   3.33 -10.69  -3.67 
1975 01  -7.88 -20.07 -13.97 
1975 02 -11.04 -23.31 -17.17 
1975 03  -4.82 -18.03 -11.42 
1975 04   3.59  -6.35  -1.38 
1975 05  15.38   3.85   9.61 
1975 07  26.51  13.49  20.00 
1975 08  18.79   7.87  13.33 
1975 09  18.76   2.78  10.77 
1975 10   8.56  -3.70   2.43 
1975 11   2.08  -9.74  -3.83 
1976 01  -7.29 -21.17 -14.23 
1976 02  -2.72 -13.09  -7.90 
1976 03   0.19 -11.19  -5.50 
1976 04  14.00   0.35   7.17 
1976 05  20.19   5.30  12.74 
1976 06  20.09   8.43  14.26 
1976 07  24.00  11.99  17.99 
1976 08  24.78  11.18  17.98 
1976 09  20.61   5.61  13.11 
1976 10  10.03  -2.34   3.84 
1976 11   4.10  -9.60  -2.75 
1976 12  -3.87 -16.20 -10.03 
1977 01  -9.12 -22.61 -15.86 
1977 02   3.64 -12.60  -4.48 
1977 03   3.78  -9.08  -2.65 
1977 04  15.51   -.34   7.58 
1977 05  18.35   6.10  12.22 
1977 06  23.81   9.47  16.64 
1977 07  23.42  10.73  17.07 
1977 08  19.14   7.11  13.12 
1977 09 -99.99   5.28 -99.99 
1977 10  12.15   -.85   5.64 
1977 11   -.83 -12.11  -6.47 
1977 12 -12.70 -22.45 -17.57 
1978 02  -7.91 -21.93 -14.92 
1978 03   2.30  -9.97  -3.83 
1978 04   8.87  -1.07   3.90 
1978 05  17.08   4.62  10.85 
1978 06  23.47   9.05  16.26 
1978 07  24.39  11.30  17.84 
1978 08  22.71   8.49  15.60 
1978 09  16.83   5.14  10.98 
1978 10  13.45   -.29   6.58 
1978 11   -.86 -12.95  -6.90 
1978 12  -6.47 -19.57 -13.02 
1979 01 -11.01 -24.63 -17.82 
1979 02 -17.31 -29.04 -23.17 
1979 03   1.94 -11.81  -4.93 
1980 02  -4.90 -19.95 -12.42 
1980 03  -1.81 -16.70  -9.25 
1980 04  16.76   0.83   8.79 
1980 05  21.00   4.23  12.61 
1980 06  21.27   9.20  15.23 
1980 07  24.17   9.93  17.04 
1980 08  19.92   7.53  13.72 
1980 10  13.41   -.85   6.28 
1980 11   4.12  -7.22  -1.55 
1980 12 -99.99 -22.57 -99.99 
1981 01   -.43 -12.66  -6.54 
1981 02  -1.08 -14.34  -7.71 
1981 03 -99.99  -6.56 -99.99 
1981 04  12.39  -1.72   5.33 
1981 05  18.46   4.87  11.67 
1981 06  20.36   7.28  13.82 
1981 07  23.76  11.66  17.70 
1981 08  27.27  11.56  19.41 
1981 09  19.70   4.15  11.92 
1981 10  10.37  -2.65   3.86 
1981 12  -5.84 -15.39 -10.61 
1982 01 -16.26 -31.10 -23.68 
1982 02 -99.99 -25.09 -99.99 
1982 03  -2.62 -18.34 -10.48 
1982 04 -99.99  -7.76 -99.99 
1982 05 -99.99   2.85 -99.99 
1982 06  22.38   8.33  15.35 
1982 07  23.19 -99.99 -99.99 
1982 08  21.44   8.32  14.88 
1982 09 -99.99   3.45 -99.99 
1982 10 -99.99  -1.82 -99.99 
