Year Per 100,000 People 1981 0.6395 1982 0.4485 1985 0.2557 1986 0.6705 1987 0.7422 1988 0.643 1989 0.3994 1990 0.4696 1991 0.3076 1992 0.8195 1993 0.4996 1994 0.3532 1995 0.5653 1996 0.7867 1997 0.7571 1998 1.0085