Year Per 100,000 People 1981 5.0728 1982 4.5126 1985 3.1332 1986 2.624 1987 3.1378 1988 3.6987 1989 3.8836 1990 3.4402 1991 1.9933 1992 3.5627 1994 2.1931 1995 2.5244 1996 2.408 1997 3.2574 1998 2.9088 1999 3.258 2000 1.6122 2001 1.0999 2004 3.8597 2005 1.5732 2006 1.7355 2007 1.2341 2009 3.4905 2010 1.5514 2011 1.846 2012 2.3608 2013 2.6267 2014 3.3356 2015 3.8087