1953 11 26.58  16.95  21.77 
1953 12 25.12  15.46  20.29 
1954 01 25.41  13.55  19.48 
1954 02 24.68  11.47  18.07 
1954 03 25.07  12.96  19.01 
1954 04 28.85  18.34  23.59 
1954 05 30.04  19.61  24.82 
1954 06 30.69  21.06  25.87 
1954 07 31.72  21.58  26.65 
1954 08 33.68  21.50  27.59 
1954 09 31.45  21.23  26.34 
1954 10 28.58  18.20  23.39 
1954 11 25.35  12.72  19.03 
1954 12 23.10   8.76  15.93 
1955 01 24.26   9.97  17.11 
1955 02 24.31  13.53  18.92 
1955 03 27.25  14.10  20.67 
1955 04 29.09  16.32  22.70 
1955 05 30.90  17.60  24.25 
1955 06 30.86  20.10  25.48 
1955 07 31.17  21.30  26.23 
1955 08 32.49  21.44  26.96 
1955 09 31.95  21.74  26.84 
1955 10 29.16  17.83  23.49 
1955 11 27.46  14.09  20.77 
1955 12 25.24  14.13  19.68 
1956 01 22.49   8.17  15.33 
1956 02 25.65  14.52  20.08 
1956 03 25.74  11.77  18.75 
1956 04 26.91  15.44  21.17 
1956 05 29.20  19.84  24.52 
1956 06 30.58  19.94  25.26 
1956 07 29.69  21.49  25.59 
1956 08 33.29  21.26  27.27 
1956 09 30.34  21.56  25.95 
1956 10 28.80  19.85  24.32 
1956 11 25.21  13.84  19.52 
1956 12 25.37  12.05  18.71 
1957 01 25.80  12.09  18.94 
1957 02 27.00  15.76  21.38 
1957 03 26.36  13.32  19.84 
1957 04 28.37  19.66  24.01 
1957 05 30.02  20.39  25.20 
1957 06 31.80  21.39  26.59 
1957 07 32.96  22.10  27.53 
1957 08 32.47  22.39  27.43 
1957 09 31.36  22.31  26.83 
1957 11 28.31  18.40  23.35 
1957 12 24.20  12.05  18.12 
1958 01 20.66  10.22  15.44 
1958 02 20.06   7.69  13.87 
1958 03 25.82  14.89  20.35 
1958 04 28.39  17.10  22.74 
1958 05 28.79  20.32  24.55 
1958 06 31.71  22.00  26.85 
1958 07 31.90  22.82  27.36 
1958 08 33.68  21.95  27.82 
1958 09 32.34  21.60  26.97 
1958 10 29.77  18.42  24.09 
1958 11 29.13  19.18  24.15 
1958 12 25.13  14.54  19.83 
1959 01 23.77  12.53  18.15 
1959 02 28.15  17.78  22.96 
1959 03 26.03  15.45  20.74 
1959 04 28.83  17.08  22.95 
1959 05 30.20  20.08  25.14 
1959 06 31.76  21.11  26.43 
1959 07 31.66  21.70  26.68 
1959 08 32.00  21.75  26.87 
1959 09 31.42  21.45  26.43 
1959 10 30.94  21.09  26.01 
1959 11 27.68  17.67  22.67 
1959 12 23.83  12.26  18.04 
1960 01 24.77  10.75  17.76 
1960 02 24.68  11.59  18.13 
1960 03 25.35  11.67  18.51 
1960 04 28.62  16.85  22.73 
1960 05 30.00  16.74  23.37 
1960 06 30.97  21.37  26.17 
1960 07 32.86  22.42  27.64 
1960 08 32.41  21.97  27.18 
1960 09 31.26  22.80  27.03 
1960 10 30.53  20.61  25.57 
1960 11 28.00  17.71  22.86 
1960 12 24.03  11.03  17.53 
1961 01 23.50  10.99  17.24 
1961 02 25.66  14.29  19.97 
1961 03 28.07  15.94  22.00 
1961 04 28.71  15.06  21.88 
1961 05 30.55  18.69  24.62 
1961 06 31.22  21.01  26.11 
1961 07 32.86  21.57  27.21 
1961 08 33.04  21.13  27.08 
1961 09 32.20  20.12  26.16 
1961 10 29.82  17.29  23.56 
1961 11 27.79  14.76  21.27 
1961 12 26.28  12.22  19.25 
1962 01 25.85  12.62  19.23 
1962 02 27.95  12.79  20.37 
1962 03 27.28  13.42  20.35 
1962 04 27.89  16.04  21.97 
1962 05 30.86  17.45  24.15 
1962 06 31.31  21.48  26.39 
1962 07 33.07  22.88  27.97 
1962 08 32.75  23.13  27.94 
1962 09 31.70  22.21  26.95 
1962 10 30.18  19.65  24.91 
1962 11 24.96  13.47  19.21 
1962 12 23.12  10.22  16.67 
1963 01 24.27  13.08  18.67 
1963 02 23.73  12.61  18.17 
1963 03 27.92  16.83  22.37 
1963 04 28.89  16.41  22.65 
1963 05 29.99  18.95  24.47 
1963 06 31.76  21.58  26.67 
1963 07 33.41  22.87  28.14 
1963 08 33.64  22.69  28.16 
1963 09 31.79  22.97  27.38 
1963 10 29.06  19.15  24.10 
1963 11 26.23  16.54  21.39 
1963 12 22.91   9.88  16.39 
1964 01 23.51  13.35  18.43 
1964 02 23.91  11.34  17.62 
1964 03 27.67  18.00  22.83 
1964 04 28.80  20.03  24.41 
1964 05 29.32  19.83  24.57 
1964 06 31.29  21.80  26.54 
1964 07 32.70  23.29  27.99 
1964 08 33.39  23.28  28.33 
1964 09 31.93  22.76  27.34 
1964 10 28.80  20.00  24.40 
1964 11 27.74  17.57  22.65 
1964 12 25.92  16.65  21.28 
1965 01 24.93  12.81  18.87 
1965 02 25.38  15.18  20.27 
1965 03 27.27  16.58  21.92 
1965 04 30.37  17.74  24.05 
1965 05 29.67  19.17  24.42 
1965 06 30.96  22.27  26.61 
1965 07 32.09  22.07  27.08 
1965 08 32.66  23.04  27.85 
1965 09 30.79  23.52  27.15 
1965 10 29.72  19.92  24.82 
1965 11 27.39  17.73  22.56 
1965 12 25.19  14.09  19.64 
1966 01 23.42  13.06  18.24 
1966 02 24.31  14.96  19.63 
1966 03 25.34  14.96  20.15 
1966 04 27.34  17.61  22.47 
1966 05 30.23  21.08  25.65 
1966 06 30.08  22.26  26.17 
1966 07 32.09  23.65  27.87 
1966 08 32.34  23.26  27.80 
1966 09 32.13  22.71  27.42 
1966 10 30.00  20.82  25.41 
1966 11 26.24  15.69  20.96 
1966 12 24.12  12.37  18.24 
1967 01 25.55  15.34  20.44 
1967 02 25.16  13.24  19.20 
1967 03 27.21  16.54  21.88 
1967 04 28.53  17.18  22.85 
1967 05 31.13  19.75  25.43 
1967 06 31.48  21.28  26.38 
1967 07 32.49  22.94  27.71 
1967 08 32.15  22.44  27.29 
1967 09 32.22  22.02  27.12 
1967 10 29.01  20.23  24.62 
1967 11 27.22  16.43  21.82 
1967 12 26.10  15.62  20.86 
1968 01 24.38  13.07  18.72 
1968 02 22.92  10.05  16.48 
1968 03 24.45  12.84  18.64 
1968 04 29.33  18.11  23.72 
1968 05 30.01  20.58  25.29 
1968 06 30.32  22.16  26.24 
1968 07 31.69  23.09  27.39 
1968 08 32.47  23.29  27.88 
1968 09 31.93  22.45  27.19 
1968 10 29.49  19.84  24.66 
1968 11 25.76  14.81  20.28 
1968 12 24.59  11.96  18.27 
1969 01 23.87  13.62  18.74 
1969 02 23.71  10.76  17.23 
1969 03 23.92  12.90  18.41 
1969 04 28.78  19.87  24.33 
1969 05 29.44  21.15  25.29 
1969 06 31.86  22.84  27.35 
1969 07 33.22  23.22  28.22 
1969 08 32.56  22.58  27.57 
1969 09 31.32  22.79  27.05 
1969 10 30.34  21.80  26.07 
1969 11 25.69  15.18  20.43 
1969 12 23.16  11.34  17.25 
1970 01 21.01   9.52  15.26 
1970 02 20.02  10.43  15.22 
1970 03 22.59  14.47  18.53 
1970 04 27.68 -99.99 -99.99 
1970 05 28.22  18.96  23.59 
1970 06 30.94  20.48  25.71 
1970 07 31.88  21.88  26.88 
1970 08 32.45  21.80  27.12 
1970 09 31.26  21.32  26.29 
1970 10 29.79  19.74  24.76 
1970 11 25.60  12.12  18.86 
1970 12 25.55  11.99  18.77 
1971 01 25.02  11.09  18.05 
1971 02 25.47  13.75  19.61 
1971 03 26.26  11.73  18.99 
1971 04 27.92  14.27  21.09 
1971 05 30.54  18.33  24.43 
1971 06 31.32  19.81  25.56 
1971 07 32.08  21.28  26.68 
1971 08 32.12  21.99  27.05 
1971 09 31.08  21.53  26.30 
1971 10 30.25  20.36  25.30 
1971 11 27.36  17.75  22.55 
1971 12 27.12  17.08  22.10 
1972 01 26.82  16.56  21.68 
1972 02 25.42  13.12  19.27 
1972 03 27.46  15.04  21.25 
1972 04 29.21  16.95  23.08 
1972 05 30.24  19.53  24.88 
1972 06 30.64  22.14  26.39 
1972 07 31.32  22.26  26.79 
1972 08 32.28  21.88  27.07 
1972 09 31.32  21.90  26.61 
1972 10 30.55  19.66  25.10 
1972 11 27.02  17.37  22.20 
1972 12 25.91  16.02  20.96 
1973 01 25.57  14.00  19.78 
1973 02 22.81  10.78  16.79 
1973 03 27.52  16.86  22.19 
1973 04 28.59  17.69  23.14 
1973 05 31.04  19.78  25.41 
1973 06 31.81  21.81  26.81 
1973 07 32.08  22.28  27.18 
1973 08 31.73  22.74  27.23 
1973 09 32.08  22.22  27.15 
1973 10 29.93  19.87  24.90 
1973 11 28.17  18.11  23.14 
1973 12 23.67  12.01  17.84 
1974 01 27.67  16.89  22.28 
1974 02 25.16  11.50  18.33 
1974 03 28.99  15.48  22.23 
1974 04 28.69  17.29  22.99 
1974 05 31.15  20.18  25.66 
1974 06 31.56  21.35  26.45 
1974 07 32.00  21.69  26.84 
1974 08 31.64  22.24  26.93 
1974 09 32.47  22.82  27.64 
1974 10 28.50  19.62  24.06 
1974 11 26.78  15.44  21.11 
1974 12 24.64  13.25  18.94 
1975 01 26.65  15.13  20.89 
1975 02 28.10  14.88  21.49 
1975 03 28.60  14.52  21.56 
1975 04 30.19  17.37  23.78 
1975 05 31.66  19.85  25.75 
1975 06 32.32  21.68  27.00 
1975 07 31.70  21.81  26.75 
1975 09 32.06  22.24  27.15 
1975 10 30.24  20.27  25.25 
1975 11 26.94  17.12  22.03 
1975 12 24.93  14.21  19.57 
1976 01 23.83  10.66  17.24 
1976 02 24.96  12.84  18.90 
1976 03 27.94  17.45  22.70 
1976 04 27.89  16.79  22.34 
1976 05 29.94  20.63  25.28 
1976 06 29.75  21.18  25.46 
1976 07 32.15  22.44  27.29 
1976 08 32.07  22.30  27.18 
1976 09 31.96  21.43  26.69 
1976 10 28.86  18.04  23.45 
1976 11 26.85  17.16  22.00 
1976 12 24.91  14.39  19.65 
1977 01 21.61   9.42  15.51 
1977 02 24.81  12.76  18.78 
1977 03 28.35  18.17  23.26 
1977 04 27.93  17.54  22.73 
1977 05 29.08  19.32  24.20 
1977 06 32.07  22.12  27.09 
1977 07 31.86  22.49  27.17 
1977 08 31.72  23.06  27.39 
1977 09 31.53  22.39  26.96 
1977 10 29.13  17.85  23.49 
1977 11 27.59  17.34  22.46 
1977 12 25.14  13.23  19.18 
1978 01 22.05  11.16  16.60 
1978 02 22.55   9.04  15.79 
1978 03 26.08  14.48  20.27 
1978 04 28.73  16.90  22.81 
1978 05 30.84  21.13  25.98 
1978 06 32.05  22.54  27.29 
1978 07 32.38  22.67  27.52 
1978 08 32.24  22.53  27.38 
1978 09 32.07  22.20  27.13 
1978 10 29.90  20.61  25.25 
1978 11 28.79  18.34  23.56 
1978 12 27.12  17.17  22.14 
1979 01 23.55  12.49  18.02 
1979 02 24.61  11.83  18.22 
1979 03 26.36  15.12  20.74 
1979 04 29.55  20.15  24.84 
1979 05 29.26  20.53  24.89 
1979 06 31.56  21.82  26.68 
