Year Per 100,000 People 1981 28.5903 1982 29.4559 1985 24.695 1986 18.8579 1987 22.1457 1988 22.7677 1989 23.9409 1990 25.3948 1991 24.92 1992 23.4087 1993 27.3246 1994 29.8324 1995 28.2636 1996 23.6978 1997 23.199 1998 22.4687 1999 23.758 2000 21.6393 2001 23.5849 2002 22.4888 2003 19.111 2004 17.0819 2005 16.8767 2006 15.3218 2007 15.3512 2008 15.7808 2009 14.3568 2010 16.1745 2011 14.8022 2012 16.2054 2013 13.5171 2014 13.4728 2015 12.2494