1956 07 33.24 -99.99 -99.99 
1956 09 31.20 -99.99 -99.99 
1956 10 29.62 -99.99 -99.99 
1956 11 25.99  13.00  19.49 
1956 12 26.01  11.84  18.92 
1957 01 27.67  11.49  19.58 
1957 02 27.81  13.89  20.85 
1957 03 26.95  13.95  20.45 
1957 04 29.92  17.34  23.63 
1957 05 31.10  19.36  25.23 
1957 06 31.97  21.03  26.50 
1957 08 32.81  22.47  27.64 
1957 09 32.48  22.58  27.53 
1957 10 28.84  19.15  23.99 
1957 11 28.19  16.44  22.31 
1957 12 23.80  11.07  17.43 
1958 01 20.64   9.87  15.25 
1958 02 20.28   7.84  14.06 
1958 03 25.25  14.00  19.62 
1958 04 28.69  16.39  22.54 
1958 05 30.09  19.79  24.94 
1958 06 32.34  22.29  27.32 
1958 07 32.68  22.79  27.73 
1958 08 33.25  22.56  27.91 
1958 09 33.09  22.13  27.61 
1958 10 29.70  17.79  23.75 
1958 11 29.66  17.48  23.57 
1958 12 25.39  12.13  18.76 
1959 01 23.37  11.12  17.24 
1959 02 29.22  16.45  22.84 
1959 03 27.37  13.19  20.28 
1959 04 29.68  14.09  21.88 
1959 05 31.22  17.51  24.36 
1959 06 32.14  20.23  26.18 
1959 07 32.30  21.69  26.99 
1959 08 32.55  22.60  27.57 
1959 09 31.90  22.43  27.16 
1959 10 31.73  21.81  26.77 
1959 11 27.52  17.10  22.31 
1959 12 23.89  11.47  17.68 
1960 01 24.95   9.56  17.25 
1960 02 25.04 -99.99 -99.99 
1960 03 26.24   9.71  17.97 
1960 04 29.15  14.39  21.77 
1960 05 30.91  15.19  23.05 
1960 06 32.54  19.79  26.16 
1960 07 33.13  20.94  27.03 
1960 08 33.34  21.86  27.60 
1960 10 30.97  20.73  25.84 
1960 11 27.92  17.44  22.68 
1960 12 23.68   9.68  16.68 
1961 01 23.13   9.60  16.36 
1961 02 26.65  11.92  19.28 
1961 03 30.26  12.98  21.62 
1961 04 29.81  11.77  20.79 
1961 05 32.32  16.31  24.31 
1961 07 33.20  20.59  26.89 
1961 08 33.74  21.42  27.58 
1961 09 33.14  20.80  26.97 
1961 10 30.63  16.17  23.40 
1961 11 29.32  13.34  21.33 
1961 12 26.67  10.45  18.56 
1962 01 26.48  10.26  18.36 
1962 02 29.91  11.69  20.80 
1962 03 27.59  11.56  19.57 
1962 04 29.57  12.82  21.19 
1962 05 33.11  15.74  24.42 
1962 07 33.57  22.80  28.18 
1962 08 33.23  22.95  28.09 
1962 10 30.34  19.73  25.03 
1962 11 25.34  12.94  19.14 
1962 12 23.11   8.66  15.88 
1963 01 24.90  10.74  17.82 
1963 02 23.70  10.77  17.23 
1963 03 28.99 -99.99 -99.99 
1963 04 30.34  12.47  21.40 
1963 05 31.68  16.34  24.01 
1963 06 32.91  19.98  26.44 
1963 07 34.32  20.56  27.43 
1963 08 34.30  20.75  27.52 
1963 09 33.00  21.74  27.37 
1963 11 26.41  13.50  19.95 
1963 12 22.79   7.26  15.02 
1964 01 24.04  11.38  17.71 
1964 02 24.50   9.39  16.95 
1964 03 28.70  15.20  21.95 
1964 04 30.70  15.10  22.90 
1964 05 31.44  16.76  24.10 
1964 06 32.79  19.87  26.33 
1964 09 32.16  21.84  27.00 
1964 10 29.03  18.56  23.79 
1964 11 28.17  15.29  21.73 
1964 12 26.42  13.17  19.79 
1965 01 25.01   9.75  17.38 
1965 02 26.75  12.12  19.43 
1965 03 28.81  13.69  21.25 
1965 04 31.71  14.88  23.29 
1965 05 32.59  14.52  23.56 
1965 06 32.57  19.91  26.24 
1965 08 33.50  22.10  27.80 
1965 09 32.09  22.52  27.30 
1965 11 27.90  15.72  21.81 
1966 02 25.08  11.38  18.23 
1966 03 26.22  11.33  18.77 
1966 04 29.14  12.92  21.03 
1966 05 32.06  17.70  24.88 
1966 08 33.13  23.13  28.13 
1966 09 32.25  22.65  27.45 
1966 10 30.58  20.85  25.71 
1966 11 26.38 -99.99 -99.99 
1966 12 24.64   9.64  17.14 
1967 01 25.89  12.46  19.17 
1967 02 25.78   9.63  17.70 
1967 03 28.46  12.68  20.57 
1967 04 30.67  12.92  21.79 
1967 05 32.93  15.72  24.32 
1967 06 32.50  19.09  25.80 
1967 07 33.68 -99.99 -99.99 
1967 09 32.56  21.11  26.83 
1967 10 29.62  19.41  24.51 
1967 11 27.07  13.89  20.48 
1967 12 26.93  12.84  19.88 
1968 01 24.91   9.70  17.30 
1968 03 26.52  10.75  18.63 
1968 04 31.70  14.11  22.90 
1969 01 24.04   8.50  16.27 
1969 02 25.50  10.76  18.13 
1969 08 33.07  22.32  27.69 
1969 09 32.53  21.78  27.15 
1969 10 30.92  21.10  26.01 
1969 11 25.16  11.07  18.11 
1969 12 23.35   8.38  15.86 
