Year Per 100,000 People 1981 1.2161 1982 1.2066 1985 2.0482 1986 2.0622 1987 2.3261 1988 0.5599 1989 0.5637 1990 1.1752 1991 0.6801 1992 3.5944 1993 3.0562 1994 2.0678 1995 2.3397 1996 0.9788 1997 0.6362 1998 1.2214 1999 3.1105 2000 1.9396 2001 0.5397 2002 0.4838 2003 1.4166 2005 0.4924 2007 1.5368 2008 0.9104 2011 0.4547 2012 1.4391 2013 0.5051 2015 0.5172