Year Per 100,000 People 1980 14.6223 1981 14.4109 1982 14.0303 1985 11.6323 1986 8.7044 1987 9.2791 1988 11.6017 1989 15.1387 1990 17.4347 1991 18.7304 1992 26.6724 1993 33.286 1994 33.7152 1995 32.2442 1996 28.2526 1997 24.9209 1998 24.0673