Year Per 100,000 People 1981 52.3557 1982 39.1351 1985 47.5143 1986 41.1268 1987 35.4042 1988 30.3605 1989 36.5245 1990 33.8382 1991 37.1954 1992 39.9792 1993 54.7393 1994 58.6122 1995 56.6128 1996 48.9967 1997 49.3148 1998 41.5124 1999 38.8586 2000 30.3369 2001 37.3692 2002 33.2962 2003 28.1455 2004 26.6351 2005 19.4901 2006 17.8068 2007 19.1121 2008 19.0942 2009 17.4911 2010 19.0007 2011 19.1044 2012 18.1103 2013 16.2155 2014 16.8757 2015 14.8706