Year Per 100,000 People 1981 31.7413 1982 33.5586 1985 34.7241 1986 29.593 1987 25.8184 1988 26.5396 1989 28.1711 1990 25.3317 1991 27.1248 1992 27.2218 1993 28.5081 1994 31.217 1995 31.1546 1996 31.5424 1997 30.0914 1998 27.683 1999 28.1564 2000 26.7739 2001 29.6693 2002 27.0629 2003 29.7511 2004 27.4812 2005 28.2349 2006 29.491 2007 25.4437 2008 27.2878 2009 28.8809 2010 29.7393 2011 22.3549 2012 24.0464 2013 24.6801 2014 25.2192 2015 23.5507 2016 23.2465