1959 10 -99.99  -4.08 -99.99 
1959 11  -7.17 -15.68 -11.42 
1959 12 -99.99 -13.42 -99.99 
1960 03  -7.10 -19.29 -13.20 
1960 04   4.12  -6.96  -1.42 
1960 05  15.03   2.67   8.85 
1960 06  20.19   8.30  14.24 
1960 07  25.49  11.70  18.59 
1960 08  23.75  10.13  16.94 
1960 09  15.03   4.71   9.87 
1960 10   7.14  -1.03   3.05 
1960 11  -6.09 -13.87  -9.97 
1960 12 -12.84 -22.45 -17.64 
1961 01 -15.39 -25.87 -20.63 
1961 02  -9.22 -19.69 -14.45 
1961 03  -2.88 -14.33  -8.60 
1961 04   2.43  -9.92  -3.74 
1961 05 -99.99   1.46 -99.99 
1961 06 -99.99   8.74 -99.99 
1961 07 -99.99  11.83 -99.99 
1961 08 -99.99  10.73 -99.99 
1961 11 -99.99 -11.86 -99.99 
1961 12 -19.31 -27.72 -23.51 
1962 01 -19.94 -30.40 -25.17 
1962 02 -17.07 -29.17 -23.12 
1962 03  -4.32 -17.09 -10.70 
1962 04   3.77  -8.28  -2.25 
1962 05  15.00   1.92   8.46 
1962 06  22.92  10.10  16.51 
1962 07  23.16  10.45  16.80 
1962 08  21.46   9.32  15.39 
1962 09 -99.99   4.67 -99.99 
1962 10  10.73   0.40   5.56 
1962 11   -.45 -10.42  -5.43 
1962 12 -13.25 -22.38 -17.81 
1963 01 -99.99 -30.17 -99.99 
1963 02 -13.29 -26.42 -19.85 
1963 03  -4.14 -19.93 -12.03 
1963 04   8.02  -5.60   1.21 
1963 05  13.44   0.24   6.83 
1963 06  21.05   9.56  15.30 
1963 07  25.15  14.06  19.60 
1963 08  24.45  12.49  18.47 
1963 09  17.17   6.00  11.58 
1963 10  15.64 -99.99 -99.99 
1963 11  -2.94 -12.34  -7.64 
1963 12 -13.12 -22.57 -17.84 
1964 01 -13.19 -21.24 -17.21 
1964 02  -7.60 -18.58 -13.09 
1964 03 -99.99 -25.62 -99.99 
1964 04 -99.99  -4.71 -99.99 
1964 05 -99.99   3.76 -99.99 
1964 06 -99.99   7.57 -99.99 
1964 07  24.50  13.02  18.76 
1964 08 -99.99   9.07 -99.99 
1964 09  13.24   3.22   8.22 
1964 10 -99.99  -1.30 -99.99 
1964 11  -4.87 -12.80  -8.83 
1964 12 -17.62 -27.15 -22.39 
1965 01 -19.45 -29.93 -24.69 
1965 02 -16.36 -30.01 -23.18 
1965 03  -7.15 -22.90 -15.02 
1965 04   6.74  -4.38   1.17 
1965 05  13.37   1.08   7.22 
1965 06  20.37   9.26  14.81 
1965 07  22.91  11.38  17.14 
1965 08  21.33   9.59  15.46 
1965 09   9.80   1.22   5.51 
1965 10   9.52  -0.05   4.73 
1965 11  -6.76 -14.51 -10.63 
1965 12  -9.22 -16.08 -12.65 
1966 01 -23.08 -33.98 -28.53 
1966 02 -12.84 -25.18 -19.01 
1966 03  -3.17 -15.22  -9.19 
1966 04   2.45  -7.88  -2.71 
1966 05  12.88   0.49   6.68 
1966 06  20.46   9.13  14.79 
1966 07  23.54  12.49  18.01 
1966 08  22.52  10.28  16.40 
1966 09  18.77   7.86  13.31 
1966 10   6.79   -.90   2.94 
1966 11 -10.77 -20.36 -15.56 
1966 12 -13.44 -21.50 -17.46 
1967 01 -17.29 -26.49 -21.89 
1967 02 -15.59 -28.71 -22.15 
1967 03  -6.52 -99.99 -99.99 
1967 04   0.98 -11.59  -5.30 
1967 05  13.06  -1.27   5.89 
1967 06  19.64   6.74  13.19 
1967 07  23.68  10.03  16.85 
1967 08  24.12  10.35  17.23 
1967 09  19.82   7.99  13.90 
1967 10   4.94  -1.82   1.56 
1967 11  -3.86 -10.85  -7.35 
1967 12 -12.45 -19.75 -16.10 
1968 01 -17.74 -28.30 -23.02 
1968 02 -11.62 -24.44 -18.03 
1968 03   -.25 -13.26  -6.75 
1968 04   7.04  -5.93   0.55 
1968 05  15.90   2.21   9.05 
1968 06  19.20   7.91  13.55 
1968 07  22.54 -99.99 -99.99 
1968 08  19.26 -99.99 -99.99 
1968 09  15.78 -99.99 -99.99 
1968 10   6.23 -99.99 -99.99 
1968 11  -3.08 -99.99 -99.99 
1968 12 -14.95 -99.99 -99.99 
1969 01 -21.39 -99.99 -99.99 
1969 02  -9.52 -19.14 -14.33 
1969 03  -3.25 -99.99 -99.99 
1969 04  10.69 -99.99 -99.99 
1969 05  13.86 -99.99 -99.99 
1969 06  18.25 -99.99 -99.99 
1969 07  23.92 -99.99 -99.99 
1969 08  24.26  12.89  18.57 
1969 09 -99.99   4.60 -99.99 
1969 10 -99.99  -5.07 -99.99 
1969 11 -99.99 -12.35 -99.99 
1969 12  -9.10 -16.64 -12.87 
1970 01 -17.04 -26.32 -21.68 
1970 02 -11.88 -22.93 -17.40 
1970 03  -4.84 -19.08 -11.96 
1970 04   4.48  -5.51   -.51 
1970 05  14.27   1.12   7.69 
1970 06  21.76  10.44  16.10 
1970 07  24.75  13.09  18.92 
1970 08  22.95  10.12  16.53 
1970 09  14.41   4.80   9.60 
1970 10   6.48   -.32   3.08 
1970 11  -5.78 -12.74  -9.26 
1970 12 -19.81 -28.39 -24.09 
1971 01 -20.15 -27.91 -24.03 
1971 02  -8.92 -20.15 -14.53 
1971 03  -4.34 -16.49 -10.41 
1971 04   8.02  -5.13   1.44 
1971 05  17.73   3.24  10.48 
1971 06  22.49   9.63  16.06 
1971 07  21.19   9.49  15.34 
1971 08  23.87  10.45  17.16 
1971 09  15.25   5.55  10.40 
1971 10   7.08   -.65   3.21 
1971 11  -5.61 -11.86  -8.73 
