Year Per 100,000 People 1955 5.3559 1956 5.2249 1957 2.1717 1958 0.88 1959 10.1795 1960 16.8092 1961 15.7011 1962 16.3997 1963 11.781 1964 15.8265 1965 18.6308 1966 11.6815 1967 18.2128 1968 17.9919 1969 11.4201 1970 19.6013 1971 21.8553 1972 18.6591 1973 23.5763 1974 20.9014 1975 24.2595 1976 30.8746 1977 28.3576 1978 25.6897 1979 22.5923 1980 24.0231 1981 19.68 1982 29.4284 1983 29.043 1984 29.7976 1985 29.4529 1986 24.2934 1987 27.5822