Year Per 100,000 People 1966 7.0785 1967 9.443 1968 10.38 1969 10.3212 1970 10.5963 1977 8.1503 1978 7.9179 1979 5.8563 1980 5.7816 1981 6.3345 1982 5.3761 1983 4.8334 1984 4.5309 1985 4.9339 1986 6.0696 1987 5.6793 1988 6.2026 1989 5.7268 1990 5.3166 1991 4.9652 1992 6.0804 1993 5.726 1994 5.9167 1995 6.2672 1996 5.9735