Year Per 100,000 People 1980 5.1932 1981 7.1298 1982 4.6868 1983 5.6613 1984 5.6725 1985 5.6026 1986 5.2271 1987 6.3042 1988 6.0954 1989 10.4389 1990 10.1511 1991 11.7462 1992 16.7191 1993 24.5784 1994 20.1452 1995 18.3374 1996 15.8325 1997 13.4443 1998 11.2384 1999 10.6686 2000 7.3599 2001 8.6171 2002 7.064 2003 7.4978 2004 6.0137 2005 6.2615 2006 6.4163 2007 3.6671 2008 5.4101 2009 3.3598 2010 2.3517 2011 2.4751 2012 3.7297 2013 2.4801 2014 3.231 2015 2.3032