Year Per 100,000 People 1986 22.0845 1987 21.4243 1988 21.0624 1989 21.8405 1990 21.7703 1991 20.5809 1992 23.0412 1993 20.6684 1994 19.7799 1995 20.1198 1996 17.5149 1997 18.5351 1998 18.5422 1999 16.8368 2000 19.2216 2001 17.4098 2002 17.2118 2003 18.9509 2004 16.535 2005 18.0869 2006 14.3302 2007 14.4069 2008 14.7736 2009 14.3308 2010 14.1166 2011 16.0882 2012 16.9207 2013 15.4263 2014 14.0435 2015 13.2137 2016 12.8521