Year Per 100,000 People 1981 19.8964 1982 13.7987 1985 17.4001 1986 16.7739 1987 22.7395 1988 22.1636 1989 17.5755 1990 21.5947 1991 21.9539 1992 36.5675 1993 32.04 1994 22.5759 1995 12.8338 1996 11.4375 1997 8.4242 1998 10.9038