Year Per 100,000 People 1985 12.7089 1986 12.7569 1987 14.1049 1988 15.0419 1989 17.7111 1990 18.3295 1991 18.6968 1992 17.2407 1993 17.8459 1994 16.1634 1995 12.3249 1996 12.1397 1997 9.4261