Year Per 100,000 People 1981 25.6724 1982 24.6777 1985 14.9437 1986 19.0757 1987 19.1168 1988 24.9768 1989 36.6976 1990 29.5941 1991 32.9247 1992 27.3189 1993 20.3181 1994 18.7721 1995 18.7116 1996 21.0515 1997 17.0543 1998 15.5222 1999 13.7671 2000 14.1492 2001 17.4052 2002 18.3553 2003 21.1932 2004 24.0244 2005 20.1822 2006 22.1947 2007 32.8733 2008 31.0325 2009 28.2737 2010 24.0765 2011 27.2009 2012 25.6092 2013 29.2788 2014 24.0352 2015 25.978