Year Per 100,000 People 1981 6.6886 1982 6.5404 1985 6.4581 1986 4.7547 1987 4.7693 1988 6.4546 1989 9.3794 1990 10.3627 1991 7.8317 1992 17.453 1993 13.3259 1994 15.4769 1995 16.0645 1996 12.2517 1997 15.6994 1998 11.0587 1999 10.7271 2000 10.0805 2001 10.5518 2002 8.1559 2003 6.4617 2004 4.0906 2005 4.4193 2006 5.0758 2007 4.6218 2008 5.1727 2009 2.6381 2010 3.2732 2011 4.0095 2012 2.9469 2013 3.7297 2014 2.3121 2015 2.6428 2016 2.6907