Year Per 100,000 People 1961 23.2926 1963 16.071 1964 8.799 1965 13.0622 1966 11.4776 1967 16.5528 1968 10.8 1969 12.4225 1970 14.484 1971 13.0296 1972 11.8637 1973 9.9481 1974 12.3943 1975 10.1383 1977 11.5201 1978 9.086 1979 8.5375 1980 11.3641 1982 14.111 1984 16.2647 1985 16.2291 1986 14.6355 1987 15.7677 1988 17.5114 1991 18.5118