Year Per 100,000 People 1981 12.6844 1982 11.0668 1985 9.7672 1986 7.6377 1987 8.6958 1988 8.4924 1989 12.367 1990 18.7256 1991 16.8159 1992 33.618 1993 43.5718 1994 48.0834 1995 40.6693 1996 33.2128 1997 26.145 1998 29.3571 1999 23.9443 2000 20.9672 2001 22.6253 2002 17.007 2003 15.5071 2004 12.118 2005 12.2874 2006 9.8506 2007 10.3095 2008 9.6236 2009 7.5581 2010 6.6637 2011 7.0389 2012 6.5659 2013 4.6556 2014 4.6274 2015 4.1892