10205030 1964 7.32 6.55 5.87 5.01 4.60 4.62 5.31 37.7 27.4 10.2 9.69 8.97 10205030 1965 8.06 7.25 6.80 5.81 5.39 5.65 9.67 51.8 90.5 22.2 17.5 17.3 10205030 1966 12.1 9.98 8.39 6.77 7.34 8.71 15.1 23.7 11.3 9.09 7.45 6.86 10205030 1967 6.59 6.19 5.52 4.93 4.66 5.78 5.80 29.3 32.8 13.2 9.56 9.02 10205030 1968 8.22 6.79 6.03 5.24 4.95 5.21 7.08 62.8 71.5 20.1 17.5 13.3 10205030 1969 10.7 9.09 7.77 6.87 6.50 6.53 20.8 101 32.0 20.1 15.6 13.3 10205030 1970 11.3 6.96 6.23 6.36 7.15 6.97 8.47 103 54.1 22.0 16.1 15.2 10205030 1971 12.2 11.4 11.2 7.97 5.21 7.47 19.7 56.2 39.6 17.3 14.1 9.99 10205030 1972 11.0 9.12 7.65 7.61 7.27 9.40 11.0 20.9 12.4 8.91 7.29 6.59 10205030 1973 6.78 6.03 5.50 5.65 5.96 8.02 11.6 123 57.2 17.6 17.6 14.8 10205030 1974 14.3 10.6 9.33 9.02 10.5 15.1 23.3 149 29.0 13.8 11.8 10.2 10205030 1975 9.92 8.85 6.52 5.59 4.76 4.62 6.53 47.5 104 19.7 13.9 11.6 10205030 1976 10.1 8.17 7.87 7.40 6.48 5.72 7.11 36.5 13.0 9.30 8.76 7.49 10205030 1977 6.82 5.76 4.15 2.58 2.49 4.25 7.64 5.12 3.70 4.67 4.09 3.55 10205030 1978 3.57 3.24 3.33 3.43 3.46 4.42 10.1 65.7 83.1 18.5 14.6 11.8 10205030 1979 10.2 9.26 7.43 7.67 7.69 6.37 12.0 104 51.0 22.5 16.2 12.3 10205030 1980 11.5 9.56 7.46 7.05 6.62 6.37 14.2 133 79.5 23.9 20.9 15.2 10205030 1981 12.4 7.96 9.29 8.37 7.96 7.68 18.7 37.4 22.5 13.0 11.2 10.00 10205030 1982 8.16 6.87 4.65 6.04 6.58 6.91 16.3 77.7 49.7 20.9 17.9 13.4 10205030 1983 11.8 9.45 5.81 4.53 7.46 8.99 13.5 119 162 50.3 34.4 21.7 10205030 1984 18.7 15.3 13.2 12.4 10.3 10.3 26.5 275 151 45.0 31.0 25.4 10205030 1985 18.9 16.0 14.1 13.6 10.8 13.1 51.6 82.7 36.6 20.5 16.4 14.4 10205030 1986 12.9 10.3 9.21 9.19 8.41 13.9 29.3 89.1 52.2 21.1 16.7 14.5 10205030 1987 11.9 9.90 7.55 5.37 4.47 6.65 29.6 61.1 24.4 10.4 10.2 9.19 10205030 1988 7.88 7.75 6.04 5.21 9.48 16.0 21.5 50.3 19.9 12.0 9.91 8.55