Year Per 100,000 People 1989 5.0149 1990 4.1926 1991 3.9735 1992 4.3498 1993 4.3473 1994 4.4015 1995 4.0515 1996 3.5888 1997 3.5606 1998 3.6311 1999 3.6198 2000 3.6158 2001 3.0629 2002 3.8553 2003 3.6943 2004 3.121 2005 3.1577 2006 3.2899 2007 3.1469 2008 3.0988 2009 2.8577 2010 3.2581 2011 2.7222 2012 2.6838 2013 2.7299 2014 2.2042 2015 2.3941 2016 2.3262