1951 08 31.69 -99.99 -99.99 
1951 10 21.41   7.60  14.50 
1951 11 99.99  -1.29 -99.99 
1951 12  6.57  -4.19   1.18 
1952 01  8.26  -1.35   3.45 
1952 02  8.17  -1.33   3.42 
1952 04 19.46   6.00  12.73 
1952 06 32.21  19.31  25.75 
1952 07 33.14  18.99  26.06 
1952 08 30.67  16.95  23.81 
1952 09 27.60  12.87  20.23 
1952 10 19.41   4.08  11.74 
1952 11 13.39   2.49   7.94 
1952 12  6.46  -1.25   2.60 
1953 01  7.81  -1.74   3.03 
1953 02 10.71  -2.18   4.26 
1953 03 13.55   2.02   7.78 
1953 04 16.91   4.21  10.56 
1953 05 25.93  13.55  19.74 
1953 06 31.57  17.91  24.74 
1953 07 31.78  17.60  24.69 
1953 08 32.15  16.67  24.41 
1953 09 29.28  13.18  21.23 
1953 10 23.57   7.46  15.51 
1953 11 13.66   1.89   7.77 
1953 12  7.61  -2.27   2.67 
1954 01  6.72  -2.40   2.15 
1954 02 12.41    .83   6.62 
1954 03 11.82    .21   6.01 
1954 04 23.22  10.01  16.61 
1954 05 21.86   9.77  15.81 
1954 06 30.83  17.66  24.24 
1954 07 32.98  19.02  26.00 
1954 08 30.05  18.04  24.05 
1954 09 29.62  15.45  22.53 
1954 10 20.84   9.16  15.00 
1954 11 12.24   2.05   7.14 
1954 12  6.10  -2.08   2.01 
1955 01  4.09  -5.68   -.79 
1955 02  7.84  -1.95   2.94 
1955 03 14.87 -99.99 -99.99 
1955 04 21.82   9.70  15.76 
1955 05 25.25  13.51  19.38 
1955 06 26.42  14.57  20.49 
1955 07 32.50  21.30  26.90 
1955 08 99.99  19.44 -99.99 
1955 09 28.62  15.21  21.91 
1955 10 20.03   8.45  14.24 
1955 11 11.58    .18   5.88 
1955 12  5.98  -3.80   1.09 
1956 01  3.59  -5.57   -.99 
1956 02  8.56  -1.49   3.53 
1956 03 12.78    .85   6.81 
1956 04 17.51   5.14  11.32 
1956 05 24.37  11.71  18.04 
1956 06 28.67  16.83  22.75 
1956 07 29.35  18.56  23.95 
1956 08 29.55  18.16  23.85 
1956 09 25.19  12.98  19.08 
1956 10 22.74  10.14  16.44 
1956 11 12.55   2.00   7.27 
1956 12 11.03   1.43   6.23 
1957 01  2.94  -5.55  -1.30 
1957 02  9.07    .22   4.64 
1957 03 12.54   1.29   6.91 
1957 05 25.19  12.38  18.78 
1957 06 29.20  18.04  23.62 
1957 07 31.47  19.87  25.67 
1957 08 30.77  18.00  24.38 
1957 09 26.13  14.84  20.48 
1957 10 17.65   6.89  12.27 
1957 11 12.83   2.56   7.69 
1957 12  9.14   -.28   4.43 
1958 01  3.88  -4.17   -.14 
1958 02  2.17  -7.45  -2.64 
1958 03  7.90    .25   4.07 
1958 04 19.08   7.02  13.05 
1958 05 24.34  11.83  18.08 
1958 07 29.33  19.39  24.36 
1958 08 29.05  17.89  23.47 
1958 09 25.80  14.84  20.32 
1958 10 20.34   7.73  14.03 
1958 11 13.85   3.40   8.62 
1958 12  3.26  -6.65  -1.69 
1959 01  5.20  -6.15   -.47 
1959 02  9.32  -3.19   3.06 
1959 03 11.15   -.46   5.34 
1959 04 19.85   6.81  13.33 
1959 05 26.73  14.52  20.62 
1959 06 29.33  16.79  23.06 
1959 07 31.36  18.46  24.91 
1959 08 32.13  19.43  25.78 
1959 09 28.83  14.57  21.70 
1959 10 20.23   7.50  13.86 
1959 11 11.53  -1.36   5.08 
1959 12  7.62  -1.02   3.30 
1960 01  6.11  -3.05   1.53 
1960 02  4.10  -5.51   -.70 
1960 03  4.48  -6.41   -.96 
1960 04 21.71   7.91  14.81 
1960 05 21.99   9.68  15.83 
1960 06 28.10  14.48  21.29 
1960 07 29.41  16.40  22.90 
1960 08 30.42  17.42  23.92 
1960 09 27.87  13.83  20.85 
1960 10 20.69   6.47  13.58 
1960 11 14.12    .94   7.53 
1960 12  3.97  -8.74  -2.38 
1961 01  3.17  -7.77  -2.30 
1961 02  8.95  -1.14   3.90 
1961 03 99.99   3.92 -99.99 
