1965 01 30.30  23.38  26.84 
1965 02 29.24  23.60  26.42 
1965 03 28.52  22.79  25.65 
1965 04 27.24  22.04  24.64 
1965 05 25.25  20.19  22.72 
1965 06 22.49  17.70  20.09 
1965 07 20.07  15.33  17.70 
1965 08 22.52  17.35  19.93 
1965 09 24.96  19.12  22.04 
1965 10 26.80  20.51  23.65 
1965 11 27.72  21.77  24.74 
1965 12 28.63  22.47  25.55 
1966 01 28.08  22.85  25.46 
1966 02 29.72  23.89  26.80 
1966 03 28.75  23.06  25.90 
1966 04 27.11  22.31  24.71 
1966 05 23.69  19.79  21.74 
1966 06 21.93  17.82  19.87 
1966 07 20.76  16.73  18.74 
1966 08 21.62  17.20  19.41 
1966 09 23.94  19.27  21.60 
1966 10 25.55  19.86  22.70 
1966 11 27.35  22.19  24.77 
1966 12 28.37  22.54  25.45 
1967 01 28.57  22.59  25.58 
1967 02 27.82  22.67  25.24 
1967 03 27.42  23.85  25.63 
1967 04 25.56  21.97  23.76 
1967 05 23.58  20.19  21.88 
1967 06 22.10  18.89  20.49 
1967 07 21.01  17.95  19.48 
1967 08 21.35  17.52  19.43 
1967 09 23.79  18.70  21.25 
1967 10 26.78  21.21  23.99 
1967 11 26.85  22.39  24.62 
1967 12 27.65  22.78  25.21 
1968 01 28.38  23.90  26.14 
1968 02 27.71  23.83  25.77 
1968 03 27.68  23.77  25.72 
1968 04 27.54  23.35  25.44 
1968 05 23.69  19.46  21.58 
1968 06 21.55  18.40  19.97 
1968 07 20.75  17.12  18.93 
1968 08 21.76  17.61  19.68 
1968 09 23.67  18.91  21.29 
1968 10 25.87  20.73  23.30 
1968 11 27.91  22.77  25.34 
1968 12 28.53  23.42  25.97 
1969 01 30.41  24.83  27.62 
1969 02 29.11 -99.99 -99.99 
1969 03 27.71  23.36  25.53 
1969 04 26.65 -99.99 -99.99 
1969 05 24.32 -99.99 -99.99 
1969 06 21.95  17.45  19.70 
1969 07 21.93  16.87  19.40 
1969 08 22.79  18.12  20.45 
1969 09 23.12  17.29  20.20 
1969 10 25.88  19.84  22.86 
1969 11 28.18  21.59  24.88 
1969 12 29.23  23.08  26.15 
1970 01 29.57  24.10  26.83 
1970 02 28.91 -99.99 -99.99 
1970 03 28.80 -99.99 -99.99 
1970 04 26.81 -99.99 -99.99 
1970 05 23.48 -99.99 -99.99 
1970 06 22.64 -99.99 -99.99 
1970 07 20.99 -99.99 -99.99 
1970 08 22.18 -99.99 -99.99 
1970 09 23.93  18.46  21.20 
1970 10 25.92  20.61  23.26 
1970 11 27.50  22.05  24.77 
1970 12 28.72  23.16  25.93 
1971 01 30.04  24.31  27.17 
1971 02 28.22  23.70  25.96 
1971 03 26.69  23.10  24.89 
1971 04 25.25  21.90  23.57 
1971 05 24.03  19.90  21.96 
1971 06 21.45  18.33  19.89 
1971 07 20.71  16.99  18.84 
1971 08 22.69  18.66  20.67 
1971 09 24.24  19.39  21.81 
1971 10 26.99  21.92  24.45 
1971 11 99.99  22.78 -99.99 
1971 12 99.99  23.64 -99.99 
1972 01 29.04  23.89  26.46 
1972 02 27.58  23.60  25.59 
1972 03 26.66  23.41  25.03 
1972 04 25.63  22.11  23.87 
1972 05 23.13  19.27  21.20 
1972 06 21.42  18.34  19.88 
1972 07 21.14  17.31  19.22 
1972 08 22.47  17.78  20.12 
1972 09 23.80  18.10  20.95 
1972 10 26.38  20.69  23.53 
1972 11 27.83  22.72  25.27 
1972 12 28.68  22.99  25.83 
1973 01 29.77  24.58  27.17 
1973 02 31.23  25.03  28.13 
1973 03 31.23  24.65  27.93 
1973 04 29.06 -99.99 -99.99 
1973 05 27.84 -99.99 -99.99 
1973 06 24.68  19.40  22.04 
1973 07 23.69  18.61  21.15 
1973 08 25.09  18.28  21.68 
1973 09 26.37  19.77  23.07 
1973 10 27.99  21.34  24.66 
1973 11 29.78  23.33  26.55 
1973 12 30.44  24.03  27.23 
1974 01 29.17  24.21  26.68 
1974 02 30.28  24.49  27.38 
1974 03 29.18  23.89  26.53 
1974 04 29.46  22.76  26.11 
1974 05 25.84  19.85  22.84 
1974 06 23.89  17.79  20.84 
1974 07 23.14  16.49  19.81 
1974 08 23.56  17.46  20.51 
1974 09 25.03 -99.99 -99.99 
1974 10 26.93 -99.99 -99.99 
1974 11 27.94  21.11  24.52 
1974 12 30.31  23.01  26.66 
1975 01 30.14  24.27  27.20 
1975 02 29.89  24.22  27.05 
1975 03 99.99  24.24 -99.99 
1975 04 27.41  22.30  24.85 
1975 05 25.73  20.61  23.17 
1975 06 22.36  18.03  20.19 
1975 07 23.52  18.46  20.99 
1975 08 24.06  18.49  21.27 
1975 09 24.86  19.11  21.98 
1975 10 27.17  20.84  24.00 
1975 11 29.63  22.38  26.00 
1975 12 30.23  23.30  26.76 
1976 01 29.96  23.98  26.97 
1976 02 28.57  24.52  26.54 
1976 03 28.21  24.21  26.21 
1976 04 25.21  22.06  23.63 
1976 05 23.94  20.29  22.12 
1976 06 23.35  18.32  20.83 
1976 07 22.31  17.39  19.84 
1976 08 22.82  17.11  19.96 
1976 09 24.84  18.50  21.67 
1976 10 25.18  20.41  22.79 
1976 11 28.05  23.44  25.74 
1976 12 30.05  25.10  27.57 
1977 01 29.74  24.74  27.24 
1977 02 28.85  24.31  26.58 
1977 03 29.75  24.75  27.25 
1977 04 27.77  22.86  25.31 
1977 05 26.06  21.14  23.59 
1977 06 22.37  17.71  20.04 
1977 07 22.70  17.27  19.98 
1977 08 24.40  18.41  21.40 
1977 09 24.40  19.09  21.74 
1977 10 26.17  20.69  23.43 
1977 11 27.79  22.78  25.28 
