Year Per 100,000 People 1980 22.725 1981 23.5701 1982 20.4282 1983 21.4922 1984 22.1377 1985 18.7304 1986 18.2221 1987 15.8812 1988 18.9407 1989 14.2102 1990 19.1217 1991 20.5863 1992 25.7617 1993 27.8347 1994 26.3026 1995 30.0009 1996 25.507 1997 26.1465 1998 24.1237 1999 20.1188 2000 21.3098 2001 18.5958 2002 21.0182 2003 20.0564 2004 15.2912 2005 18.0388 2006 15.1328 2007 13.7188 2008 18.6015 2009 16.642 2010 14.7123 2011 17.7852 2012 15.1049 2013 11.0283 2014 17.3835 2015 14.1026