Year Per 100,000 People 1981 8.3836 1982 8.1098 1985 6.3231 1986 5.1149 1987 5.5208 1988 6.6932 1989 8.1059 1990 9.7113 1991 11.7379 1992 15.2824 1993 16.3399 1994 19.017 1995 20.7557 1996 20.8452 1997 17.9365 1998 16.2356 1999 18.4993 2000 18.2965 2001 18.4849 2002 16.7111 2003 15.3934 2004 15.8011