1957 02 36.20  24.13  30.16 
1957 03 32.27  22.12  27.19 
1957 04 33.89  20.43  27.16 
1957 05 31.28  15.21  23.24 
1957 09 33.93  14.00  23.97 
1957 11 38.34  22.94  30.64 
1957 12 36.65  23.99  30.32 
1958 01 34.77  23.65  29.21 
1958 02 36.45  23.77  30.11 
1958 04 33.59  22.23  27.91 
1958 05 32.93  19.21  26.07 
1958 06 29.56  13.26  21.41 
1958 07 30.80  13.82  22.31 
1958 09 33.79  14.35  24.07 
1958 10 36.99  19.06  28.02 
1958 11 36.70  22.87  29.78 
1958 12 37.33  24.10  30.71 
1959 01 35.53  23.80  29.66 
1959 02 36.31  22.69  29.50 
1959 03 35.24  23.06  29.15 
1959 04 33.21  20.03  26.62 
1959 05 30.53  16.44  23.48 
1959 07 30.01  11.88  20.94 
1959 08 31.46  12.84  22.15 
1959 09 34.02  17.02  25.52 
1959 10 99.99  19.95 -99.99 
1959 11 38.74  23.61  31.17 
1959 12 39.27  25.08  32.17 
1960 01 36.00  25.27  30.64 
1960 02 34.18  24.18  29.18 
1960 04 33.37  21.00  27.18 
1960 05 29.14  14.42  21.78 
1960 06 28.81 -99.99 -99.99 
1960 09 99.99  16.34 -99.99 
1960 11 37.33  22.86  30.09 
1960 12 36.02  23.51  29.76 
1961 03 37.50  22.63  30.06 
1961 12 38.30  24.09  31.19 
1964 08 32.66  13.63  23.14 
1964 09 34.15  19.57  26.86 
1964 10 35.64  22.36  29.00 
1964 11 36.81  22.85  29.83 
1964 12 35.39  22.91  29.15 
1965 01 36.08  23.74  29.91 
1965 02 35.98  23.14  29.56 
1965 03 31.20  22.29  26.74 
1965 04 34.02  18.18  26.10 
1965 05 32.55  16.62  24.59 
1965 06 29.74  13.63  21.68 
1965 07 28.13   9.33  18.73 
1965 08 31.70  13.47  22.58 
1965 09 34.65  17.03  25.84 
1965 10 35.74  19.75  27.74 
1965 11 38.43  23.18  30.81 
1965 12 34.18  24.38  29.28 
1966 01 33.14  24.53  28.83 
1966 02 34.41  24.76  29.59 
1966 03 34.31 -99.99 -99.99 
1966 04 35.09  19.64  27.37 
1966 05 31.73  15.63  23.68 
1966 06 30.53  14.29  22.41 
1966 07 30.09  11.50  20.79 
1966 08 31.12  14.72  22.92 
1966 09 34.56  17.03  25.79 
1966 10 34.90  17.25  26.07 
1966 11 36.45  21.77  29.11 
1966 12 37.15  23.63  30.39 
1967 01 36.89  25.09  30.99 
1967 02 31.06  23.78  27.42 
1967 03 31.62  23.09  27.35 
1967 04 33.49  19.51  26.50 
1967 05 31.34  15.24  23.29 
1967 06 27.80  11.73  19.76 
1967 07 28.17 -99.99 -99.99 
1967 09 33.56  13.86  23.71 
1967 10 36.15 -99.99 -99.99 
1967 11 37.43  23.01  30.22 
1967 12 37.93  24.30  31.11 
1968 01 35.49  25.00  30.24 
1968 02 31.91  23.70  27.80 
1968 03 99.99  23.45 -99.99 
1968 04 34.87  20.88  27.87 
1968 05 29.48  18.17  23.82 
1968 06 29.38  12.62  21.00 
1968 08 30.40  10.51  20.45 
1968 10 36.00  19.99  27.99 
1968 11 38.45  22.61  30.53 
1968 12 36.75  23.41  30.08 
1969 01 35.12  24.25  29.68 
1969 02 34.30  24.47  29.38 
1969 03 33.78  23.53  28.65 
1969 04 34.68  17.77  26.22 
1969 05 33.38  15.96  24.67 
1969 07 31.16  14.65  22.90 
1969 08 32.32  14.35  23.33 
1969 09 33.53  13.89  23.71 
1969 10 36.59  20.20  28.39 
1969 11 39.95  22.39  31.17 
1969 12 37.96  24.84  31.40 
1970 01 37.80  24.05  30.92 
1970 02 36.43  24.88  30.66 
1970 03 35.29  22.19  28.74 
1970 04 34.18  19.71  26.95 
1970 06 31.38  12.66  22.02 
1970 07 29.50  10.20  19.85 
1970 08 31.85  12.24  22.04 
1970 09 35.04  16.73  25.88 
1970 10 37.52  20.76  29.14 
1970 11 36.52  23.44  29.98 
1970 12 37.03  24.04  30.53 
1971 01 38.04  24.93  31.48 
1971 02 34.30  23.96  29.13 
1971 03 32.43  23.10  27.76 
1971 04 30.14  20.28  25.21 
1971 05 30.48  14.13  22.30 
1971 06 27.50  10.52  19.01 
1971 07 28.64  10.22  19.43 
1971 08 32.55  15.15  23.84 
1971 09 99.99  16.93 -99.99 
1971 10 99.99  22.13 -99.99 
1971 11 37.61  23.75  30.68 
1972 01 38.43 -99.99 -99.99 
1972 02 33.84  23.78  28.81 
1972 03 32.23  22.80  27.51 
1972 11 37.38 -99.99 -99.99 
1973 01 35.84 -99.99 -99.99 
1973 02 35.40 -99.99 -99.99 
1973 03 31.91 -99.99 -99.99 
1973 04 32.81 -99.99 -99.99 
1973 05 33.21  17.03  25.12 
1973 06 30.47  16.98  23.72 
1973 07 29.82  14.14  21.98 
1973 08 32.18  14.36  23.27 
1973 09 34.00  18.06  26.03 
1973 10 36.56  20.52  28.54 
1973 11 35.12  24.04  29.58 
1973 12 35.21  23.80  29.50 
1974 01 32.73  24.52  28.62 
1974 02 33.62  24.01  28.81 
1974 03 32.59  23.40  27.99 
1974 04 34.07  20.24  27.15 
1974 05 31.88  15.88  23.88 
1974 06 29.34  10.85  20.09 
1974 07 30.12 -99.99 -99.99 
1974 08 32.02  19.94  25.98 
1974 09 34.05 -99.99 -99.99 
1974 10 35.98  20.96  28.47 
1974 11 37.14  24.21  30.67 
1974 12 36.41  24.65  30.53 
1975 01 35.16  24.35  29.75 
1975 02 99.99  23.45 -99.99 
1975 03 99.99  23.27 -99.99 
1975 04 99.99  20.71 -99.99 
1975 05 99.99  15.14 -99.99 
1975 06 99.99  13.24 -99.99 
1975 07 99.99  13.86 -99.99 
1975 08 99.99  14.97 -99.99 
1975 09 99.99  19.60 -99.99 
1975 12 35.18 -99.99 -99.99 
1976 01 34.18 -99.99 -99.99 
1976 02 33.18 -99.99 -99.99 
1976 03 33.41 -99.99 -99.99 
1976 04 34.16 -99.99 -99.99 
1976 05 32.06  13.93  22.99 
1976 06 30.14  10.82  20.48 
1976 11 38.09  23.62  30.86 
1976 12 37.96  24.77  31.36 
1977 02 33.50  24.94  29.22 
1977 03 99.99  24.19 -99.99 
1977 05 32.38 -99.99 -99.99 
1977 06 28.98   9.78  19.37 
1977 07 99.99   9.71 -99.99 
1977 10 36.41  19.73  28.07 
1977 11 38.16  23.92  31.04 
1978 02 35.72  24.33  30.02 
