1948 1 49.4930 1948 2 49.8530 1948 3 49.9240 1948 4 50.2490 1948 5 50.2070 1948 6 50.9510 1948 7 51.4460 1948 8 51.7440 1948 9 50.9850 1948 10 50.9790 1948 11 51.3410 1948 12 51.4270 1949 1 49.9050 1949 2 49.5710 1949 3 49.6570 1949 4 49.3750 1949 5 49.0880 1949 6 49.1730 1949 7 49.1840 1949 8 50.5480 1949 9 50.5660 1949 10 50.6660 1949 11 51.0510 1949 12 51.1240 1950 1 50.1310 1950 2 50.1390 1950 3 50.2610 1950 4 50.8600 1950 5 51.0230 1950 6 51.5630 1950 7 51.9340 1950 8 53.3470 1950 9 52.8180 1950 10 52.6490 1950 11 53.0620 1950 12 53.3160 1951 1 52.3610 1951 2 52.3430 1951 3 53.1670 1951 4 52.7700 1951 5 53.0740 1951 6 52.8630 1951 7 53.6020 1951 8 54.0140 1951 9 53.3280 1951 10 53.5820 1951 11 53.6980 1951 12 54.0360 1952 1 52.8820 1952 2 52.9120 1952 3 53.0520 1952 4 53.0120 1952 5 53.5600 1952 6 53.4400 1952 7 53.7280 1952 8 54.3920 1952 9 54.0880 1952 10 53.9840 1952 11 54.8060 1952 12 55.1760 1953 1 54.5260 1953 2 54.8520 1953 3 55.1370 1953 4 54.6970 1953 5 54.8400 1953 6 54.8580 1953 7 55.2260 1953 8 55.6030 1953 9 54.7900 1953 10 55.0350 1953 11 54.9080 1953 12 54.5650 1954 1 53.4740 1954 2 53.5190 1954 3 53.3760 1954 4 53.6680 1954 5 53.4710 1954 6 53.4210 1954 7 53.5740 1954 8 54.4140 1954 9 53.8830 1954 10 54.3030 1954 11 54.9540 1954 12 54.7950 1955 1 54.1490 1955 2 54.3310 1955 3 54.2610 1955 4 54.8030 1955 5 55.0830 1955 6 55.3760 1955 7 56.2900 1955 8 56.8790 1955 9 56.1850 1955 10 56.5930 1955 11 57.1690 1955 12 57.5370 1956 1 56.5750 1956 2 56.4210 1956 3 56.6440 1956 4 56.8280 1956 5 57.2430 1956 6 57.3860 1956 7 57.8060 1956 8 58.3480 1956 9 57.8080 1956 10 58.2170 1956 11 58.3130 1956 12 58.6090 1957 1 57.1530 1957 2 57.4670 1957 3 57.8680 1957 4 57.9080 1957 5 57.8240 1957 6 58.1510 1957 7 58.4690 1957 8 58.6780 1957 9 58.5180 1957 10 58.6010 1957 11 58.4750 1957 12 58.3630 1958 1 56.6450 1958 2 56.5430 1958 3 56.6200 1958 4 56.7260 1958 5 57.1030 1958 6 57.2570 1958 7 57.5590 1958 8 57.8850 1958 9 57.8460 1958 10 58.3590 1958 11 58.3650 1958 12 58.4930 1959 1 57.4800 1959 2 57.4610 1959 3 58.0460 1959 4 58.5900 1959 5 58.8990 1959 6 59.2350 1959 7 59.8680 1959 8 59.9820 1959 9 59.4730 1959 10 60.0270 1959 11 59.4560 1959 12 60.2630 1960 1 58.8690 1960 2 59.3550 1960 3 59.1630 1960 4 60.2110 1960 5 60.7030 1960 6 60.9340 1960 7 60.8820 1960 8 60.9940 1960 9 60.6370 1960 10 60.6330 1960 11 60.9550 1960 12 60.4790 1961 1 59.2730 1961 2 59.2990 1961 3 59.8910 1961 4 60.1120 1961 5 60.4850 1961 6 61.0410 1961 7 60.9920 1961 8 61.1700 1961 9 60.6070 1961 10 61.1270 1961 11 61.3200 1961 12 61.2320 1962 1 59.9070 1962 2 60.4180 1962 3 60.7790 1962 4 61.1290 1962 5 61.8760 1962 6 62.0480 1962 7 62.2720 1962 8 62.7950 1962 9 62.3410 1962 10 62.6280 1962 11 62.2890 1962 12 62.6230 1963 1 61.0640 1963 2 61.5740 1963 3 62.1090 1963 4 62.7480 1963 5 63.0620 1963 6 63.3930 1963 7 63.8090 1963 8 64.0360 1963 9 63.5160 1963 10 63.8700 1963 11 63.8680 1963 12 63.8630 1964 1 62.5800 1964 2 63.3540 1964 3 63.8000 1964 4 64.6840 1964 5 65.1760 1964 6 65.0870 1964 7 65.5130 1964 8 65.6870 1964 9 64.8720 1964 10 65.2580 1964 11 65.5100 1964 12 65.8560 1965 1 64.5860 1965 2 64.9860 1965 3 66.5100 1965 4 65.9160 1965 5 66.3880 1965 6 67.0530 1965 7 67.9660 1965 8 67.9490 1965 9 66.8420 1965 10 67.4020 1965 11 67.8500 1965 12 68.2760 1966 1 66.8920 1966 2 67.1980 1966 3 67.4380 1966 4 68.0560 1966 5 68.5230 1966 6 69.3340 1966 7 70.0760 1966 8 70.3590 1966 9 69.0620 1966 10 69.6300 1966 11 70.1800 1966 12 70.2390 1967 1 68.8260 1967 2 69.2250 1967 3 69.1490 1967 4 69.7240 1967 5 69.8120 1967 6 70.9960 1967 7 71.7050 1967 8 71.7920 1967 9 70.7000 1967 10 71.1480 1967 11 71.4600 1967 12 71.7930 1968 1 69.9080 1968 2 70.6530 1968 3 70.9800 1968 4 71.2920 1968 5 71.9350 1968 6 72.7570 1968 7 73.2700 1968 8 73.3250 1968 9 72.1030 1968 10 72.5960 1968 11 73.0010 1968 12 73.4210 1969 1 72.1920 1969 2 72.8960 1969 3 73.1930 1969 4 73.4710 1969 5 . 1969 6 . 1969 7 . 1969 8 . 1969 9 . 1969 10 . 1969 11 . 1969 12 .