Year Per 100,000 People 1981 18.6859 1982 18.71 1985 14.6443 1986 18.9184 1987 14.1856 1988 10.8954 1989 12.3008 1990 14.1855 1991 12.5802 1992 11.9243 1993 9.8604 1994 8.4871 1995 9.068 1996 9.081 1997 9.2096 1998 12.5991