Year Per 100,000 People 1981 9.8727 1982 7.9318 1985 9.9276 1986 11.1038 1987 9.2862 1988 10.7567 1989 9.6518 1990 11.81 1991 10.9412 1992 11.5993 1993 8.6129 1994 8.5788 1995 8.3331 1996 9.2361 1997 13.4989 1998 13.7106