Year Per 100,000 People 1961 32.9265 1963 18.8798 1964 10.8168 1965 12.9404 1966 15.8227 1967 17.3835 1968 10.2185 1969 12.949 1970 12.8396 1971 11.9143 1972 11.669 1973 10.5336 1974 11.7908 1975 10.8313 1977 11.8375 1978 9.5055 1979 8.7592 1980 11.0128 1982 13.8836 1984 16.1583 1985 14.7692 1986 17.5384 1987 16.2142 1988 15.5847 1991 16.5249