Year Per 100,000 People 1980 6.2276 1981 6.9413 1982 6.504 1983 6.13 1984 5.7223 1985 5.4743 1986 5.5376 1987 5.216 1988 6.2211 1989 6.9248 1990 7.6758 1991 7.9134 1992 7.5494 1993 7.4588 1994 6.9134 1995 6.3404 1996 5.7056 1997 5.2772 1998 5.4442