Year Per 100,000 People 1981 12.9979 1982 11.5984 1985 9.0389 1986 7.1037 1987 8.5061 1988 9.4683 1989 13.4991 1990 16.4209 1991 16.7083 1992 18.9217 1993 21.7392 1994 21.1486 1995 20.1117 1996 19.5084 1997 18.6954 1998 18.6501 1999 15.9644 2000 17.3171 2001 15.6517 2002 13.1875 2003 15.4584 2013 5.99 2014 4.6275 2015 4.8328