Year Per 100,000 People 1989 18.0451 1990 15.8468 1991 16.071 1992 19.4312 1993 22.167 1994 22.2362 1995 22.6916 1996 22.989 1997 22.4789 1998 22.8652 1999 21.3078 2000 22.7063 2001 20.9508 2002 25.2381 2003 23.3561 2004 21.1846 2005 21.4007 2006 21.948 2007 18.8112 2008 18.8019 2009 20.3079 2010 22.2723 2011 20.3583 2012 20.4648 2013 20.0035 2014 18.3395 2015 17.3645 2016 15.3491