Year Per 100,000 People 1981 0.2399 1982 0.23 1985 0.4469 1986 0.5872 1987 1.0886 1988 1.0783 1989 1.8457 1990 1.4022 1991 1.3074 1992 1.0144 1993 0.9411 1994 1.0502 1995 0.5067 1996 0.5487 1997 0.8806 1998 1.2002 1999 0.7878 2000 0.9444 2001 1.3288 2002 1.0554 2003 0.7249 2004 0.8393 2005 1.3517 2006 1.0967 2007 1.7799 2008 1.1488 2009 0.7312 2010 0.757 2011 0.9717 2012 1.1863 2013 2.1115 2014 1.5683 2015 1.604