Year Per 100,000 People 1981 8.8484 1982 9.1732 1985 9.6712 1986 6.9854 1987 5.2273 1988 6.386 1989 8.1047 1990 10.9725 1991 14.0906 1992 16.1752 1993 19.6787 1994 20.6948 1995 16.9079 1996 13.9963 1997 13.7512 1998 12.5389 1999 9.9023 2000 14.5344 2001 12.4608 2002 8.5809 2003 10.7049 2004 8.763 2005 8.4794 2006 8.8948 2007 7.8564 2008 8.1336 2009 6.6043 2010 6.2477 2011 6.8343 2012 6.0269 2013 6.5088 2014 5.3111 2015 5.4283 2016 4.716