1958 02 14.71   4.26   9.48 
1958 03 20.27  11.98  16.12 
1958 04 25.11  15.70  20.40 
1958 05 28.71  18.51  23.61 
1958 06 31.34  22.47  26.90 
1958 07 31.76  22.81  27.28 
1958 08 31.42  23.03  27.22 
1958 09 32.38  22.13  27.25 
1958 10 26.76  16.61  21.68 
1958 11 26.35  15.44  20.89 
1958 12 20.01   8.13  14.07 
1959 01 17.99   5.69  11.84 
1959 02 24.19  13.80  18.99 
1959 03 21.90  11.33  16.61 
1959 04 25.77  15.71  20.74 
1959 05 30.04  19.49  24.76 
1959 06 30.74  21.76  26.25 
1959 07 31.95  22.03  26.99 
1959 08 32.50  22.60  27.55 
1960 09 31.44  22.00  26.72 
1960 10 29.14  18.62  23.88 
1960 11 26.06  14.31  20.18 
1960 12 19.20 -99.99 -99.99 
1961 01 18.85   6.32  12.58 
1961 02 22.64  10.69  16.66 
1961 03 24.89  13.45  19.17 
1961 04 26.44  12.85  19.64 
1961 05 29.38  18.54  23.96 
1961 06 31.72  20.02  25.87 
1961 07 32.54  22.29  27.41 
1961 08 32.78  22.16  27.47 
1961 09 32.05  20.49  26.27 
1961 10 27.17  15.33  21.25 
1961 11 25.93  13.50  19.71 
1961 12 21.78   9.46  15.62 
1962 01 19.59   7.26  13.42 
1962 02 22.74  11.17  16.95 
1962 03 21.72  10.30  16.01 
1962 04 24.91  13.29  19.10 
1962 05 30.31  18.70  24.50 
1962 06 31.33  21.26  26.29 
1962 07 32.43  23.53  27.98 
1962 08 32.15  22.27  27.21 
1962 09 31.12  21.31  26.21 
1962 10 28.64  17.21  22.93 
1962 11 22.35  10.18  16.27 
1962 12 19.35   6.95  13.15 
1963 01 19.62   6.46  13.04 
1963 02 18.12   6.81  12.46 
1963 03 24.39  13.39  18.89 
1963 04 26.85  15.68  21.26 
1963 05 28.96  18.70  23.83 
1963 06 31.80  21.44  26.62 
1963 07 32.14  22.19  27.16 
1963 08 33.11  21.81  27.46 
1963 09 30.72  20.68  25.70 
1963 10 28.54  15.98  22.26 
1963 11 23.56  12.01  17.78 
1963 12 17.28   5.68  11.48 
1964 01 18.79   7.02  12.90 
1964 02 17.50   7.50  12.50 
1964 03 24.12  12.71  18.41 
1964 04 27.72  15.41  21.56 
1964 05 29.25  18.29  23.77 
1964 06 32.66  22.18  27.42 
1964 07 32.23  22.18  27.20 
1964 08 99.99  23.20 -99.99 
1964 09 31.05  21.56  26.30 
1964 10 26.85  16.50  21.67 
1964 11 25.54  14.59  20.06 
1964 12 22.71  11.36  17.03 
1965 01 21.15 -99.99 -99.99 
1965 02 22.06  10.57  16.31 
1965 03 22.85  12.76  17.80 
1965 04 27.29  16.35  21.82 
1965 05 29.67  17.96  23.82 
1965 06 30.46  20.61  25.53 
1965 07 31.02  21.88  26.45 
1965 08 31.63  22.11  26.87 
1965 09 31.86  21.91  26.88 
1965 10 28.14  17.36  22.75 
1965 11 25.13  13.19  19.16 
1965 12 21.61   8.66  15.13 
1966 01 19.08   7.63  13.35 
1966 02 19.60   8.47  14.04 
1966 03 22.31  10.52  16.41 
1966 04 25.37  14.47  19.92 
1966 05 28.67  20.00  24.33 
1966 06 30.37  19.71  25.04 
1966 07 31.59  22.71  27.15 
1966 08 32.12  22.38  27.25 
1966 09 30.66  21.72  26.18 
1966 10 28.84  17.83  23.33 
1966 11 24.35  11.04  17.69 
1966 12 20.12   7.61  13.87 
1967 01 21.80   9.82  15.81 
1967 02 20.09   7.75  13.92 
1967 03 24.32  12.61  18.46 
1967 04 27.73  15.95  21.84 
1967 05 28.75  17.65  23.20 
1967 06 31.41  20.27  25.84 
1967 07 31.55  21.81  26.68 
1967 08 31.26  21.65  26.45 
1967 09 31.04  19.81  25.42 
1967 10 28.25  14.41  21.33 
1967 11 24.14  11.03  17.58 
1967 12 23.69  11.50  17.59 
1968 01 20.52   7.83  14.17 
1968 02 17.01   5.44  11.22 
1968 03 21.63   7.92  14.77 
1968 04 27.53  15.80  21.66 
1968 05 29.49  17.69  23.59 
1968 06 31.05  21.30  26.17 
1968 07 31.50  21.65  26.57 
1968 08 32.40  22.31  27.35 
1968 09 31.34  20.61  25.97 
