Year Per 100,000 People 1961 16.2692 1962 18.3418 1963 16.3642 1964 19.7521 1965 22.7033 1969 25.4291 1970 21.4443 1971 23.6886 1972 26.5167 1973 30.3447 1974 24.5161 1975 23.4387 1976 19.3873 1977 22.8879 1979 19.2134 1980 23.6898 1981 21.2466 1982 18.272 1983 20.1582 1984 19.0902 1985 20.6262 1986 20.5056 1987 21.9096 1988 20.404 1989 19.177 1990 15.7252 1991 20.1816 1992 19.7154