1956 05 24.85   8.64  16.75 
1956 06 32.31  14.95  23.63 
1956 07 32.41  14.75  23.58 
1956 08 31.34  14.39  22.86 
1956 09 28.65   7.16  17.90 
1956 10 23.52 -99.99 -99.99 
1956 11  9.45  -5.09   2.17 
1956 12  8.43  -8.17    .13 
1957 01 -1.24 -16.36  -8.80 
1957 02  8.33 -99.99 -99.99 
1957 03  7.96  -6.21    .87 
1957 04 13.52    .79   7.15 
1957 05 19.79   7.24  13.52 
1957 06 26.53  11.33  18.93 
1957 07 33.55  17.29  25.42 
1957 08 30.59  15.98  23.28 
1957 09 24.20   7.09  15.64 
1957 10 15.49   3.91   9.70 
1957 11  8.59  -3.89   2.34 
1958 01  5.87  -9.01  -1.57 
1958 02   .58 -12.12  -5.77 
1958 03  2.34  -8.26  -2.95 
1958 04 14.89    .48   7.68 
1958 05 26.65 -99.99 -99.99 
1958 06 26.61  11.63  19.12 
1958 07 28.28  14.05  21.16 
1958 08 32.33  13.99  23.16 
1958 09 26.72   9.31  18.01 
1958 10 22.42    .63  11.52 
1958 11 11.40  -5.59   2.90 
1958 12  5.62 -11.17  -2.77 
1959 01  3.32 -13.63  -5.15 
1959 02  1.67 -13.26  -5.79 
1959 03 11.22  -4.96   3.12 
1959 04 18.09   -.61   8.74 
1959 05 22.23   6.99  14.61 
1959 06 31.21  13.07  22.14 
1959 07 31.09  13.58  22.33 
1959 08 33.14  15.17  24.15 
1959 09 24.59   6.98  15.78 
1959 10 16.81  -1.03   7.89 
1959 11  5.68  -9.41  -1.86 
1959 12  7.90  -7.24    .33 
