1956 10 31.56  23.41  27.48 
1956 11 31.93  24.08  28.00 
1957 01 99.99  24.68 -99.99 
1957 02 99.99  24.62 -99.99 
1957 03 29.85  24.96  27.40 
1957 04 30.68  24.92  27.80 
1957 08 31.72  24.40  28.06 
1957 09 32.18  24.42  28.30 
1957 10 31.84  24.45  28.14 
1957 11 31.06  24.22  27.64 
1957 12 31.08  25.11  28.09 
1958 01 30.38  24.51  27.44 
1958 02 30.54  24.28  27.41 
1958 03 30.50  24.18  27.34 
1958 09 99.99  22.62 -99.99 
1958 10 30.07  22.57  26.32 
1958 11 28.82  21.90  25.36 
1959 01 31.15  21.79  26.47 
1959 03 29.96  21.69  25.82 
1959 04 29.83  21.45  25.64 
1959 05 31.15  21.86  26.50 
1959 06 28.67  22.00  25.33 
1959 07 27.89  22.06  24.97 
1959 09 99.99  21.51 -99.99 
1959 10 30.22  22.82  26.52 
1959 11 29.20  22.53  25.86 
1959 12 30.16  22.55  26.35 
1960 01 30.50  24.16  27.33 
1960 02 30.37  23.40  26.88 
1960 03 30.92  22.51  26.71 
1960 04 30.53  21.93  26.23 
1960 08 30.06  22.38  26.22 
1960 09 29.61  22.46  26.03 
1960 10 30.69  22.62  26.65 
1960 11 29.49  22.55  26.02 
1960 12 28.83  22.03  25.43 
1961 01 29.96  22.53  26.24 
1961 02 29.03  22.40  25.71 
1961 03 31.38  23.68  27.53 
1961 05 32.32  24.36  28.34 
1961 07 32.05  23.29  27.67 
1961 09 31.90  23.68  27.79 
1961 11 31.41  24.14  27.77 
1961 12 30.26 -99.99 -99.99 
1962 01 29.97  24.44  27.20 
1962 02 99.99  23.47 -99.99 
1962 03 30.87  24.56  27.71 
1962 04 31.75  24.46  28.10 
1962 07 31.91  24.22  28.06 
1962 08 31.68  23.72  27.70 
1962 11 31.41  23.63  27.52 
1962 12 31.44  23.75  27.59 
1963 01 30.60  23.52  27.06 
1963 02 29.82  23.74  26.78 
1963 03 30.20  24.24  27.22 
1963 04 31.50  23.83  27.66 
1963 05 32.16  23.73  27.95 
1963 06 31.83  23.70  27.76 
1963 07 31.84  23.52  27.68 
1963 08 32.33  23.88  28.10 
1963 09 32.29  23.36  27.82 
1963 10 31.00  23.25  27.12 
1963 11 32.00  23.95  27.97 
1964 03 29.20  23.30  26.25 
1964 04 30.08  23.25  26.66 
1964 08 99.99  24.02 -99.99 
1964 10 30.90  23.85  27.37 
1964 11 31.04  24.41  27.72 
1964 12 29.49  23.69  26.59 
1965 01 29.72  24.46  27.09 
1965 02 29.98  24.63  27.30 
1965 03 30.67  24.48  27.57 
1965 11 30.27  24.32  27.29 
1966 02 30.48  24.70  27.59 
1966 03 29.79  23.42  26.60 
1966 05 31.98  23.61  27.79 
