Year Per 100,000 People 1981 11.6779 1982 12.8467 1985 9.453 1986 10.18 1987 8.9062 1988 8.1866 1989 11.2994 1990 9.6118 1991 22.4083 1992 21.1093 1993 22.8196 1994 24.0507 1995 19.0383 2007 4.3542 2008 3.8962 2009 4.4874 2010 2.913 2011 3.8219 2012 3.982 2013 1.938 2014 3.8756 2015 2.286 2016 2.9599