Year Per 100,000 People 1967 0.7275 1977 0.5575 1978 0.451 1980 0.6464 1981 1.144 1982 1.4465 1983 1.5759 1984 0.5838 1987 0.5031 1988 0.6828 1989 0.4213 1990 0.3352 1992 1.0826 1993 1.05 1996 0.4741 1997 0.4741 1998 1.3134 1999 1.8303 2000 0.8211 2001 3.2808 2002 1.1257 2004 1.7358 2005 0.3479 2008 0.3616 2009 0.7728 2010 0.5382 2011 1.0593 2012 1.0306 2015 0.4775