Year Per 100,000 People 1990 13.664 1991 13.6873 1992 13.012 1993 12.2449 1994 12.3477 1995 12.3964 1996 11.7503 1997 11.74 1998 11.1717 1999 10.6261 2000 10.4163 2001 10.4403 2002 10.3044 2003 10.2223 2004 9.7197 2005 9.2112 2006 8.6418 2007 8.2948 2008 8.3546 2009 8.4047 2010 8.8381 2011 8.7664 2012 8.5037 2013 8.7096 2014 8.7646 2015 8.5261