Year Per 100,000 People 1990 1.2287 1991 1.2666 1992 1.4092 1993 1.5559 1994 1.3152 1995 1.2961 1996 1.1338 1997 1.0879 1998 0.9198 1999 0.9542 2000 0.7245 2001 0.7555 2002 0.826 2003 0.8466 2004 0.7452 2005 0.5803 2006 0.6329 2007 0.4907 2008 0.7494 2009 0.6206 2010 0.5698 2011 0.5127 2012 0.4112 2013 0.462 2014 0.5135 2015 0.4035