1956 06 21.51 -99.99 -99.99 
1956 07 21.87 -99.99 -99.99 
1956 08 21.60   7.54  14.57 
1956 09 14.69   1.67   8.17 
1956 10  9.27  -2.89   3.19 
1956 11  2.96  -8.39  -2.71 
1956 12 -8.88 -19.59 -14.23 
1957 01 13.71 -25.25 -19.48 
1957 02 10.14 -23.44 -16.79 
1957 03  -.35 -13.34  -6.84 
1957 04  9.35  -4.71   2.32 
1957 05 16.90   2.41   9.65 
1957 06 20.96   2.56  11.75 
1957 07 23.55   7.46  15.50 
1957 08 20.49   5.96  13.22 
1957 09 17.03   3.86  10.44 
1957 10  7.88  -4.98   1.45 
1957 11   .24  -9.22  -4.49 
1957 12 -7.59 -17.56 -12.57 
1958 01 -6.03 -15.27 -10.65 
1958 02 -8.47 -21.41 -14.94 
1958 03   .22 -11.79  -5.78 
1958 04 10.08  -1.28   4.40 
1958 05 19.35   2.50  10.92 
1958 06 20.07   3.11  11.59 
1958 07 23.81   6.85  15.33 
1958 08 23.71   7.33  15.52 
1958 09 99.99    .91 -99.99 
1958 10 99.99  -3.62 -99.99 
1958 11 99.99 -13.44 -99.99 
1958 12 99.99 -20.29 -99.99 
1959 01 19.57 -30.63 -25.09 
1959 02 -6.34 -99.99 -99.99 
1959 03  3.68 -99.99 -99.99 
1959 04 10.82 -99.99 -99.99 
1959 05 14.74  -1.64   6.55 
1959 06 19.90   5.36  12.63 
1959 07 24.63   7.71  16.17 
1959 08 18.02   6.09  12.05 
1959 09 14.10   2.07   8.08 
1959 10  5.06   -.91   2.07 
1959 11 -3.09 -14.41  -8.75 
1959 12 -2.22 -13.19  -7.70 
1960 01 13.08 -25.67 -19.37 
1960 02 -7.86 -19.32 -13.59 
1960 03 -3.52 -18.12 -10.82 
1960 04  9.76  -3.16   3.30 
1960 05 15.45   2.25   8.85 
1960 06 18.53   6.41  12.47 
1960 07 24.83   9.34  17.08 
1960 08 21.32   7.89  14.60 
1960 09 17.12   2.71   9.92 
1960 10 99.99  -2.17 -99.99 
1960 11 99.99 -13.06 -99.99 
1960 12 -6.16 -16.40 -11.28 
1961 01 -8.04 -21.16 -14.60 
1961 02 -4.66 -18.87 -11.77 
1961 03   .78 -13.13  -6.17 
1961 04  5.94  -5.94    . 0 
1961 05 18.61   2.09  10.35 
1961 06 24.68   7.87  16.27 
1961 07 23.19   8.60  15.90 
1961 08 25.76   6.89  16.32 
1961 09 13.35  -1.47   5.94 
1961 10  8.75  -3.22   2.76 
1961 11 -3.31 -12.83  -8.07 
1961 12 16.18 -27.78 -21.98 
1962 01 10.81 -23.81 -17.31 
1962 02 12.65 -27.23 -19.93 
1962 03 -3.69 -18.79 -11.24 
1962 04  8.72  -4.52   2.10 
1962 05 16.45   1.01   8.73 
1962 06 22.05   7.01  14.53 
1962 07 21.35   8.35  14.85 
1962 08 21.38   7.38  14.37 
1962 09 17.07   2.28   9.67 
1962 10 12.87  -1.61   5.63 
1962 11   .91  -8.43  -3.76 
1962 12 -8.31 -18.95 -13.63 
1963 01 14.83 -27.31 -21.07 
1963 02 -8.89 -19.70 -14.29 
1963 03  -.20 -11.54  -5.87 
1963 04 10.44  -4.78   2.82 
1963 05 15.87    .56   8.21 
1963 06 21.73   7.12  14.42 
1963 07 25.19   9.74  17.46 
1963 08 23.34   7.50  15.42 
1963 09 19.87   5.11  12.49 
1963 10 15.30  -2.53   6.38 
1963 11 -2.07 -12.52  -7.29 
1963 12 -9.25 -19.79 -14.52 
1964 02  -.57 -14.46  -7.51 
1964 03 -6.97 -23.41 -15.19 
1964 04  9.12  -3.65   2.73 
1964 05 17.48   3.42  10.45 
1964 06 22.28   5.39  13.83 
1964 07 23.61   9.68  16.65 
1964 08 19.10   8.14  13.62 
1964 09 12.99   1.98   7.48 
1964 10 12.74  -1.70   5.52 
1964 11 -2.39 -11.26  -6.82 
1964 12 17.33 -28.07 -22.70 
1965 01 16.20 -27.87 -22.03 
1965 02 13.39 -26.65 -20.02 
1965 03 -4.16 -22.39 -13.27 
1965 04  8.35  -3.52   2.41 
1965 05 15.06   1.40   8.23 
1965 06 20.17   8.08  14.12 
1965 07 24.55   9.47  17.01 
1965 08 22.42   7.94  15.18 
1965 09 10.54  -2.26   4.14 
1965 10 13.26  -2.72   5.27 
1965 11 -5.91 -14.53 -10.21 
1965 12 -7.32 -19.39 -13.35 
1966 01 21.88 -33.05 -27.46 
1966 02 -8.35 -24.59 -16.47 
1966 04  5.27  -5.65   -.19 
1966 05 18.35   2.69  10.52 
1966 06 19.29   4.92  12.11 
1966 07 22.33   9.05  15.69 
1966 08 20.68   6.63  13.65 
1966 09 18.95   2.92  10.93 
1966 10  8.62  -3.56   2.53 
1966 11 -8.27 -17.91 -13.09 
1966 12 -8.53 -17.93 -13.23 
1967 01 13.46 -24.64 -19.04 
1967 02 -9.22 -24.23 -16.73 
1967 04  4.86  -9.13  -2.13 
1967 05 16.60   -.19   8.20 
1967 06 19.69   4.29  11.99 
1967 07 23.26   7.94  15.60 
1967 08 24.24   6.60  15.42 
1967 09 21.73   3.93  12.83 
1967 10  8.09  -2.06   3.01 
1967 11  -.74 -10.24  -5.49 
1967 12 -9.85 -20.93 -15.39 
1968 01 14.39 -26.18 -20.28 
1968 02 -4.65 -16.99 -10.82 
1968 03  3.36  -7.47  -2.05 
1968 04  9.33  -4.21   2.55 
1968 05 16.84    .27   8.55 
1968 06 20.91   6.31  13.61 
1968 07 23.12   6.92  15.02 
1968 08 19.14   5.89  12.51 
1968 09 15.67   3.33   9.50 
1968 10  8.27  -2.25   3.01 
1968 11  1.13  -8.01  -3.44 
1968 12 99.99 -20.23 -99.99 
1969 01 22.62 -35.09 -28.86 
1969 02 99.99 -22.22 -99.99 
1969 03 -1.50 -17.61  -9.55 
1969 04 12.67  -1.47   5.60 
1969 05 15.77   1.65   8.71 
1969 06 20.24   3.20  11.72 
1969 07 22.18   7.32  14.75 
1969 08 22.96   6.94  14.95 
1969 09 14.00   3.31   8.65 
1969 10  4.30  -5.04   -.36 
1969 11   .34 -10.91  -5.28 
1969 12 -5.93 -15.68 -10.80 
1970 01 15.61 -25.49 -20.55 
1970 02 -4.75 -19.79 -12.27 
1970 03 -4.14 -17.59 -10.86 
1970 04  9.21  -4.69   2.25 
