Year Per 100,000 People 1961 13.3711 1962 12.2084 1963 8.2057 1964 11.0312 1965 13.6341 1969 11.4539 1970 13.5491 1971 22.7478 1972 18.7222 1973 18.1714 1974 20.1543 1975 20.9632 1976 17.2776 1977 16.7955 1979 17.7514 1980 19.6993 1981 14.4969 1982 14.0289 1983 14.8939 1984 16.3313 1985 15.9545 1986 25.4021 1987 14.1684 1988 16.0709 1989 12.2619 1990 13.6983 1991 14.8032 1992 14.1526