1961 06 27.26 -99.99 -99.99 
1961 07 25.93 -99.99 -99.99 
1961 08 28.65 -99.99 -99.99 
1961 09 16.65 -99.99 -99.99 
1961 10 12.64 -99.99 -99.99 
1961 11  1.15  -7.91  -3.38 
1961 12 11.53 -21.78 -16.65 
1962 01 13.92 -26.01 -19.96 
1962 02 13.97 -25.02 -19.49 
1962 03 -2.73 -12.92  -7.82 
1962 04  5.82  -5.15    .33 
1962 05 16.01   5.58  10.79 
1962 06 24.14  12.55  18.34 
1962 07 24.23  12.91  18.57 
1962 08 23.94  12.51  18.22 
1962 09 17.98   5.74  11.86 
1962 10 14.12   1.88   8.00 
1962 11  1.86  -5.08  -1.60 
1962 12 -7.76 -16.87 -12.32 
1963 01 15.75 -24.51 -20.13 
1963 02 11.34 -22.56 -16.95 
1963 03   .80 -13.02  -6.11 
1963 04 10.04  -1.21   4.41 
1963 05 16.29   3.23   9.76 
1963 06 24.41  13.17  18.79 
1963 07 27.59  15.63  21.61 
1963 08 25.90  13.60  19.75 
1963 09 21.39   7.87  14.62 
1963 10 19.11   5.93  12.52 
1963 11  3.24  -6.59  -1.67 
1963 12 11.72 -21.25 -16.48 
1964 01 -8.85 -20.11 -14.48 
1964 02 -6.64 -20.35 -13.49 
1964 03 -6.57 -18.64 -12.60 
1964 04  9.96   -.48   4.74 
1964 05 19.50   6.40  12.95 
1964 06 21.74   9.49  15.61 
1964 07 26.83  14.73  20.78 
1964 08 22.04  10.66  16.35 
1964 09 17.10   5.11  11.10 
1964 10 12.31   1.47   6.89 
1964 11  -.30  -7.68  -3.99 
1964 12 13.85 -23.59 -18.72 
1965 01 15.59 -26.86 -21.22 
1965 02 12.68 -24.09 -18.38 
1965 03 -7.31 -19.41 -13.36 
1965 04  7.77  -1.02   3.37 
1965 05 16.43   4.30  10.36 
1965 06 23.06  10.78  16.92 
1965 07 24.14  12.56  18.35 
1965 08 24.17  11.59  17.88 
1965 09 13.29   2.65   7.97 
1965 10 12.83    .60   6.71 
1965 11 -2.57 -11.29  -6.93 
1965 12 -4.94 -14.27  -9.60 
1966 01 21.32 -32.54 -26.93 
1966 02 12.13 -27.10 -19.61 
1966 03  -.63 -10.79  -5.71 
1966 04  4.91  -3.48    .71 
1966 05 14.75   2.55   8.64 
1966 06 23.68  11.48  17.58 
1966 07 26.60  15.62  21.11 
1966 08 24.21  12.15  18.18 
1966 09 20.17   7.95  14.06 
1966 10 10.33    .14   5.23 
1966 11 -4.37 -13.54  -8.95 
1966 12 10.69 -22.07 -16.37 
1967 01 12.55 -24.03 -18.29 
1967 02 14.78 -28.36 -21.57 
1967 03 -3.35 -14.87  -9.10 
1967 04  5.01  -4.87    . 7 
1967 05 14.84   2.05   8.44 
1967 06 22.63   9.45  16.03 
1967 07 25.60  12.47  19.03 
1967 08 24.95  11.32  18.13 
1967 09 22.55   8.55  15.54 
1967 10  8.82    .40   4.60 
1967 11  -.35  -7.78  -4.06 
1967 12 -8.14 -15.78 -11.96 
1968 01 12.80 -24.60 -18.70 
1968 02 11.49 -23.71 -17.59 
1968 03  1.48  -9.88  -4.19 
1968 04 10.32  -1.93   4.19 
1968 05 15.39   3.83   9.61 
1968 06 21.52   9.87  15.69 
1968 07 23.98  12.21  18.09 
1968 08 20.69  10.57  15.63 
1968 09 19.36   7.83  13.59 
1968 10 10.54   1.17   5.86 
1968 11  1.34  -6.97  -2.81 
1968 12 10.64 -19.23 -14.93 
