Year Per 100,000 People 1990 10.3333 1991 10.2756 1992 9.5443 1993 9.0735 1994 9.9946 1995 9.4838 1996 9.5552 1997 9.237 1998 9.1601 1999 9.0412 2000 8.4231 2001 8.34 2002 8.2087 2003 8.2038 2004 7.7378 2005 6.8454 2006 6.584 2007 6.5152 2008 6.7168 2009 6.5656 2010 7.4576 2011 6.942 2012 6.8353 2013 6.56 2014 6.7805 2015 6.5452