Year Per 100,000 People 1981 11.572 1982 14.741 1985 12.9178 1986 9.9703 1987 8.7315 1988 11.4902 1989 14.1938 1990 18.2187 1991 17.7945 1992 38.0438 1993 45.4169 1994 59.7809 1995 40.9076 1996 34.0581 1997 26.29 1998 32.7147 1999 25.8864 2000 18.5207 2001 29.0695 2002 20.4251 2003 20.1813 2004 10.2819 2005 11.8877 2006 8.8727 2007 8.2836 2008 8.9945 2009 7.7738 2010 6.9377 2011 6.136 2012 5.8721 2013 6.7654 2014 5.4371 2015 4.7802