1957 01 34.75  23.04  28.89 
1957 02 37.82  23.93  30.87 
1957 03 32.68  21.01  26.84 
1957 04 34.88  19.75  27.31 
1957 05 28.48  13.65  21.06 
1957 06 26.49  13.99  20.24 
1957 07 21.81   9.37  15.59 
1957 08 27.09  10.68  18.88 
1957 09 31.11  13.40  22.25 
1957 10 36.90  19.29  28.10 
1957 11 38.36  20.73  29.54 
1957 12 39.33  23.75  31.54 
1958 01 37.83  23.43  30.63 
1958 02 37.70  23.73  30.71 
1958 03 37.11  24.11  30.61 
1958 04 31.96  20.91  26.43 
1958 06 25.02  12.10  18.56 
1958 07 27.75  10.92  19.33 
1958 08 28.50  12.88  20.69 
1958 09 29.28  12.48  20.88 
1958 10 34.75  18.62  26.68 
1958 11 36.34  22.52  29.43 
1958 12 37.55  21.09  29.32 
1959 01 36.24  23.62  29.93 
1959 02 37.98  24.46  31.22 
1959 03 33.98  22.28  28.13 
1959 04 31.61  19.81  25.71 
1959 05 25.20  15.88  20.54 
1959 06 24.48  11.55  18.01 
1959 07 23.80  10.47  17.13 
1959 08 26.87  10.20  18.53 
1959 09 30.22  15.28  22.75 
1959 10 35.36  18.48  26.92 
1959 11 38.89  23.36  31.12 
1959 12 38.58  23.22  30.90 
1960 01 37.59  23.69  30.64 
1960 02 36.52  23.79  30.15 
1960 03 34.71  21.68  28.19 
1960 04 32.91  18.66  25.79 
1960 05 24.27  10.88  17.57 
1960 06 24.69   9.28  16.98 
1960 07 25.58   8.56  17.07 
1960 08 25.40   8.30  16.85 
1960 09 31.34  13.49  22.41 
1960 10 35.28  18.20  26.74 
1960 11 36.38  20.59  28.48 
1960 12 36.16  22.67  29.41 
1961 01 36.50  22.84  29.67 
1961 02 37.16  22.91  30.03 
1961 03 36.09  20.17  28.13 
1961 04 34.33  20.33  27.33 
1961 05 27.57  14.13  20.85 
1961 06 25.20   8.29  16.74 
1961 07 24.57   8.70  16.63 
1961 08 25.47   8.58  17.02 
1961 09 31.76  15.57  23.66 
1961 10 36.37  19.75  28.06 
1961 11 37.11  21.57  29.34 
1961 12 38.27  22.68  30.47 
1962 01 36.84  23.81  30.32 
1962 02 37.34  24.42  30.88 
1962 03 33.86 -99.99 -99.99 
1962 04 30.91  17.76  24.33 
1962 05 27.32  12.43  19.87 
1962 06 26.11  13.68  19.89 
1962 07 25.09  11.25  18.17 
1962 08 26.80  10.04  18.42 
1962 09 30.46  14.61  22.53 
1962 10 36.70  20.00  28.35 
1962 11 38.47  23.01  30.74 
1962 12 37.81 -99.99 -99.99 
1963 01 36.73  24.47  30.59 
1963 02 36.43  24.36  30.39 
1963 03 35.95  23.51  29.73 
1963 04 29.85  18.91  24.38 
1963 05 29.40  14.09  21.74 
1963 06 25.16  10.56  17.86 
1963 07 25.37   7.82  16.59 
1963 08 28.14  12.00  20.07 
1963 09 32.18  13.43  22.81 
1963 10 34.24  19.95  27.09 
1963 11 37.79  22.31  30.05 
1963 12 39.30  24.06  31.68 
1964 01 99.99  24.58 -99.99 
1964 02 35.43  22.39  28.91 
1964 03 35.04  22.98  29.01 
1964 04 33.43  19.42  26.43 
1964 05 27.77  16.07  21.92 
1964 06 25.38   9.81  17.59 
1964 07 26.89   9.72  18.30 
1964 08 28.19  12.06  20.12 
1964 09 32.00  17.84  24.92 
1964 10 32.40  19.95  26.17 
1964 11 35.66  21.58  28.62 
1964 12 37.13  23.00  30.06 
1965 01 38.36  24.34  31.35 
1965 02 38.96  25.03  31.99 
1965 03 33.25  22.22  27.73 
1965 04 32.50  18.20  25.35 
1965 05 29.61  16.36  22.98 
1965 06 24.66  13.24  18.95 
1965 07 22.81   8.43  15.62 
1965 08 27.97  12.81  20.39 
1965 09 32.12  17.16  24.64 
1965 10 34.50  20.39  27.45 
1965 11 37.61  23.42  30.51 
1965 12 35.95  23.62  29.78 
1966 01 36.02  23.87  29.94 
1966 02 36.93  24.00  30.47 
1966 03 35.21  21.84  28.52 
1966 04 33.75  20.66  27.20 
1966 05 27.19  14.03  20.61 
1966 06 25.62  12.28  18.95 
1966 07 24.49  10.25  17.36 
1966 08 25.11  12.69  18.90 
1966 09 99.99  16.12 -99.99 
1966 10 32.66  18.34  25.50 
1966 11 35.91  22.50  29.21 
1966 12 35.97  23.05  29.51 
1967 01 40.16  26.13  33.14 
1967 02 34.33  23.70  29.01 
1967 03 33.09  22.45  27.77 
1967 04 33.03  20.42  26.72 
1967 05 27.99  15.48  21.73 
1967 09 31.28  14.73  23.00 
1967 10 36.30  21.46  28.88 
1967 11 37.98  23.61  30.79 
1968 01 37.24  25.39  31.31 
1968 02 35.14  24.49  29.81 
1968 03 36.00  22.65  29.32 
1968 04 34.61  20.52  27.56 
1968 05 24.76  13.94  19.35 
1968 06 26.78  12.08  19.43 
1968 07 22.91  10.61  16.76 
1968 08 26.09  10.61  18.35 
1968 09 31.29  16.37  23.83 
1968 10 34.41  19.92  27.16 
1968 11 38.02  23.26  30.64 
1968 12 36.79  23.09  29.94 
1969 01 99.99  25.49 -99.99 
1969 02 37.70  25.16  31.43 
1969 03 35.24  23.55  29.39 
1969 04 31.82  18.26  25.04 
1969 05 28.72  14.91  21.81 
1969 06 24.30  10.66  17.48 
1969 07 26.27  13.60  19.93 
1969 08 28.20  12.74  20.47 
1969 09 28.65  14.22  21.43 
1969 10 35.33  21.16  28.24 
1969 11 37.56  21.14  29.35 
1969 12 36.77  23.99  30.38 
1970 03 35.61  22.46  29.03 
1970 05 27.75  15.28  21.51 
1970 06 26.46  11.15  18.80 
1970 07 24.20  10.12  17.16 
1970 08 26.74  11.61  19.17 
1970 09 31.03  15.99  23.51 
1970 10 36.00 -99.99 -99.99 
1970 11 99.99  23.89 -99.99 
1970 12 38.91  25.26  32.08 
1971 01 40.73  25.60  33.16 
1971 02 37.41  25.49  31.45 
1971 03 31.25  22.51  26.88 
