Year Per 100,000 People 1961 13.6967 1962 10.9599 1963 9.6253 1964 13.6352 1965 12.4352 1969 14.5386 1970 13.8874 1971 19.0277 1972 19.2203 1973 26.1118 1974 29.3849 1975 33.3146 1976 27.3936 1977 26.6605 1979 26.1784 1980 28.8919 1981 32.1293 1982 28.2213 1983 22.9094 1984 24.4951 1985 28.1657 1986 31.8971 1987 22.1167 1988 27.6777 1989 23.2357 1990 31.5624 1991 43.7398 1992 50.7571