Year Per 100,000 People 1975 1.9015 1976 2.055 1977 1.7216 1978 1.5265 1979 1.7557 1980 2.5139 1981 1.9273 1982 2.7229 1983 3.041 1984 1.9272 1985 3.8691 1986 3.8782 1987 1.8785 1988 1.8196 1989 2.2269 1990 2.4549 1991 1.8864 1992 1.853 1993 3.2519 1994 4.0891 1995 2.7622 1996 1.7501 1997 1 1998 0.7154 1999 3.5955 2000 5.9769 2001 8.0048 2002 9.7237 2003 6.867 2004 5.7867 2005 4.7027 2006 4.9202 2007 2.4698 2008 2.6847 2009 2.3073 2010 3.5722 2011 3.0213 2012 2.2249 2013 2.6328 2014 2.46 2015 2.6693