Year Per 100,000 People 1990 1.1276 1991 1.3049 1992 1.3094 1993 1.3445 1994 1.396 1995 1.4006 1996 1.3425 1997 1.0816 1998 1.036 1999 1.0122 2000 0.7616 2001 0.7879 2002 0.7544 2003 0.7155 2004 0.665 2005 0.5751 2006 0.6008 2007 0.6178 2008 0.5223 2009 0.4858 2010 0.5962 2011 0.5514 2012 0.5387 2013 0.4335 2014 0.4321 2015 0.5147