Year Per 100,000 People 1981 4.5392 1982 3.5846 1985 4.0262 1986 3.9417 1987 5.0186 1988 5.1616 1989 7.0704 1990 5.2403 1991 2.331 1992 0.455 1994 0.5158 1995 0.0997 1996 0.93 1997 3.8912 1998 5.9816 1999 5.4556 2000 5.5024 2001 6.4997 2004 4.9693 2005 2.1606 2006 1.6428 2007 1.2972 2009 0.2147 2010 0.3121 2011 0.7467 2012 1.379 2013 1.2707 2014 2.6532 2015 3.283