Year Per 100,000 People 1981 3.1089 1982 2.3565 1985 2.3167 1986 1.9583 1987 2.5669 1988 2.8743 1989 4.2283 1990 2.7413 1991 1.3437 1992 0.193 1994 0.1918 1995 0.0213 1996 0.3969 1997 1.6562 1998 3.8326 1999 3.3273 2000 2.9703 2001 3.8053 2004 2.5222 2005 1.2146 2006 1.1574 2007 0.9462 2009 0.5756 2010 0.3212 2011 0.358 2012 0.7892 2013 0.8728 2014 1.921 2015 1.6978