1956 04 17.54 -99.99 -99.99 
1956 06 99.99   7.11 -99.99 
1956 07 30.89  13.73  22.31 
1956 08 28.83  11.60  20.21 
1956 09 24.49   8.28  16.38 
1956 10 13.35   3.48   8.41 
1956 11  4.01  -2.61    .70 
1956 12  1.74  -3.57   -.91 
1957 01 -7.07 -13.43 -10.25 
1957 02   .61  -6.73  -3.06 
1957 03  7.61   -.25   3.68 
1957 04 15.42   2.66   9.04 
1957 05 21.74   8.80  15.27 
1957 06 24.33   9.34  16.83 
1957 07 27.80  10.75  19.27 
1957 08 26.96  10.07  18.51 
1957 09 25.38   9.68  17.52 
1957 10 12.25   2.71   7.48 
1957 11  5.94  -2.04   1.95 
1957 12  4.55  -1.38   1.58 
1958 01  2.73  -2.28    .22 
1958 02  8.53   2.02   5.27 
1958 03  8.81   -.89   3.96 
1958 04 13.68    .95   7.31 
1958 05 24.50   8.93  16.71 
1958 06 26.39  11.92  19.15 
1958 07 31.07  13.83  22.45 
1958 08 30.98  13.72  22.35 
1958 09 22.22   7.40  14.81 
1958 10 17.56   2.93  10.24 
1958 11  5.94  -2.10   1.91 
1958 12  1.85  -2.96   -.55 
1959 01  1.34  -4.88  -1.77 
1959 02  1.92  -3.68   -.88 
1959 03  9.68   -.49   4.60 
1959 04 15.76   1.23   8.49 
1959 05 17.65   4.11  10.88 
1959 06 23.63   8.74  16.18 
1959 07 30.09  11.63  20.86 
1959 08 25.34   9.25  17.29 
1959 09 19.33   6.83  13.08 
1959 10 13.93   1.95   7.94 
1959 11  4.80  -3.83    .48 
1959 12  1.89  -3.55   -.83 
1960 01 -2.51  -9.09  -5.80 
1960 02  4.04  -2.95    .54 
1960 03  9.18  -1.04   4.07 
1960 04 14.50   1.67   8.08 
1960 05 17.86   3.94  10.90 
1960 06 24.81   8.41  16.61 
1960 07 32.34  13.78  23.06 
1960 08 25.50  10.52  18.01 
1960 09 24.37   8.03  16.20 
1960 10 16.20   3.87  10.03 
1960 11  6.69  -1.59   2.55 
1960 12   .35  -4.90  -2.27 
1961 01  2.20  -3.52   -.66 
1961 02  6.99    . 6   3.52 
1961 03  9.80    .26   5.03 
1961 04 14.43    .98   7.70 
1961 05 19.40   5.84  12.62 
1961 06 28.19  10.77  19.48 
1961 07 30.80  13.82  22.31 
1961 08 32.00  14.89  23.44 
1961 09 21.16   5.61  13.38 
1961 10 14.44   1.35   7.89 
