Year Per 100,000 People 1952 17.2909 1953 17.6906 1954 20.0133 1955 18.7302 1956 18.1109 1957 18.0879 1958 19.6119 1959 18.517 1960 18.6534 1961 19.5667 1962 18.0286 1963 19.3726 1964 20.8841 1965 20.8217 1966 22.2219 1967 24.1511 1968 22.8646 1969 24.0065 1970 23.9119 1971 23.5264 1972 22.7972 1973 23.3672 1974 23.9003 1975 24.3071 1976 25.2207 1977 25.781 1978 25.2151 1979 23.4196 1980 21.5875 1981 23.2534 1982 23.0738 1983 22.8295 1984 21.2786 1985 21.0979 1986 18.9467 1987 18.4924 1988 16.7374 1989 15.1925 1990 15.2134