Year Per 100,000 People 1981 9.6896 1982 8.8175 1985 7.3591 1986 8.0503 1987 6.8769 1988 6.8436 1989 6.7628 1990 6.0351 1991 5.1414 1992 3.9914 1994 3.5038 1995 4.4383 1996 4.7426 1997 5.3682 1998 4.2597 1999 5.6319 2000 3.7214 2001 2.5406 2004 4.3922 2005 2.1336 2006 2.055 2007 2.7078 2009 4.6107 2010 2.7529 2011 3.1863 2012 2.4684 2013 3.8535 2014 7.8909 2015 5.5217