Year Per 100,000 People 1990 0.9759 1991 1.1059 1992 1.1245 1993 1.153 1994 1.1487 1995 1.1368 1996 1.0775 1997 0.8857 1998 0.8457 1999 0.8568 2000 0.7119 2001 0.666 2002 0.7105 2003 0.6425 2004 0.6211 2005 0.5431 2006 0.5497 2007 0.5593 2008 0.4948 2009 0.514 2010 0.5611 2011 0.4918 2012 0.4932 2013 0.4598 2014 0.4193 2015 0.5057