Year Per 100,000 People 1955 7.8532 1956 7.1858 1957 7.8326 1958 6.9897 1959 6.7325 1960 6.4437 1963 5.187 1964 7.7664 1965 4.8893 1966 5.7773 1967 7.005 1968 5.611 1969 3.8964 1970 4.5634 1971 4.2386 1972 5.3906 1973 5.0436 1974 6.0534 1975 3.1961 1976 3.0808 1977 3.2218 1978 2.0184 1980 3.5064 1981 4.0749 1982 2.8194 1983 2.4749 1984 2.867 1985 1.9735 1986 2.6958 1987 3.749 1988 3.4697 1989 5.4931 1990 4.6775