Year Per 100,000 People 1955 11.3509 1956 17.0003 1957 13.2091 1958 13.8252 1959 11.0571 1960 14.3789 1963 9.9661 1964 9.1149 1965 10.0308 1966 8.9252 1967 11.2947 1968 8.8645 1969 11.6869 1970 10.8864 1971 9.5041 1972 9.844 1973 11.5187 1974 12.8295 1975 10.4352 1976 12.273 1977 13.2718 1978 12.2837 1980 8.3361 1981 9.305 1982 11.7403 1983 12.2567 1984 12.6192 1985 11.404 1986 7.8085 1987 8.8157 1988 8.7895 1989 12.7386 1990 10.78