Year Per 100,000 People 1986 9.5033 1987 8.1252 1988 8.9879 1989 8.2104 1990 8.2721 1991 7.7421 1992 7.501 1993 7.471 1994 7.6175 1995 6.4475 1996 5.0818 1997 5.2562 1998 4.9656 1999 4.6594 2000 5.0389 2001 4.687 2002 4.6758 2003 5.0442 2004 4.08 2005 4.187 2006 3.5878 2007 3.1864 2008 3.6564 2009 3.2651 2010 3.681 2011 3.6811 2012 3.7402 2013 4.1386 2014 3.9818 2015 3.7626 2016 3.9907