1956 05 99.99  14.48 -99.99 
1956 06 28.93  17.52  23.22 
1956 07 99.99  19.81 -99.99 
1956 08 34.16  19.41  26.79 
1956 09 99.99  14.07 -99.99 
1956 10 26.49  12.10  19.29 
1956 11 13.92   1.19   7.55 
1956 12 11.30   -.58   5.36 
1957 01  5.77  -5.65    . 5 
1957 02 12.36   1.48   6.92 
1957 03 13.27    .85   7.06 
1957 04 19.20   7.44  13.32 
1957 05 24.76  13.03  18.89 
1957 06 28.48  16.93  22.70 
1957 07 33.56  20.51  27.03 
1957 08 33.95  18.83  26.39 
1957 09 26.57  13.44  20.00 
1957 10 20.10   7.15  13.62 
1957 11 12.51   1.66   7.08 
1957 12 12.59    .27   6.43 
1958 01  7.42  -3.82   1.80 
1958 02  4.94  -6.19   -.62 
1958 03  7.25  -1.29   2.98 
1958 04 19.11   7.07  13.09 
1958 05 25.15  13.62  19.38 
1958 06 29.01  16.41  22.71 
1958 07 29.96  19.14  24.55 
1958 08 31.42  18.62  25.02 
1958 09 27.61  16.09  21.85 
1958 10 22.40   8.41  15.40 
1958 11 17.18   3.96  10.57 
1958 12  7.38  -4.15   1.61 
1959 01  5.84  -5.82    . 0 
1959 02 10.18  -2.08   4.05 
1959 03 15.75   1.51   8.63 
1959 04 20.91   7.10  14.00 
1959 05 25.78  14.60  20.19 
1959 06 99.99  17.03 -99.99 
1959 07 29.70  17.75  23.72 
1959 08 32.49  19.17  25.83 
1959 09 29.89  15.02  22.45 
1959 10 20.12   7.97  14.04 
1959 11 11.77  -2.08   4.84 
1959 12 10.29    .80   5.54 
