Year Per 100,000 People 1981 4.2846 1982 4.6781 1985 3.4517 1986 3.0789 1987 2.7222 1988 3.5674 1989 3.4347 1990 3.4856 1991 1.9563 1992 3.0969 1993 3.3673 1994 2.085 1995 2.7154 1996 2.2127 1997 2.3004 1998 3.0469