Year Per 100,000 People 1980 18.6532 1981 18.6457 1982 17.8696 1985 14.6708 1986 10.4313 1987 11.1133 1988 14.3734 1989 19.1707 1990 21.943 1991 23.6122 1992 35.3864 1993 46.1659 1994 48.4581 1995 45.7562 1996 38.9973 1997 35.0368 1998 33.2816