Year Per 100,000 People 1975 2.0233 1976 1.7131 1977 1.7463 1978 1.7383 1979 1.6127 1980 2.2783 1981 3.5941 1982 2.4997 1983 1.7288 1984 1.6939 1985 2.4876 1986 2.2679 1987 0.7438 1988 1.1278 1989 3.8578 1990 1.813 1991 1.8528 1992 0.8721 1993 2.2795 1994 1.5165 1995 0.841 1996 1.0682 1997 0.4216 1998 0.1568 1999 2.3215 2000 1.3967 2001 5.3706 2002 8.2338 2003 4.3942 2004 2.53 2005 2.4834 2006 3.0284 2007 2.1609 2008 1.8962 2009 1.4274 2010 1.3676 2011 1.3036 2012 0.9862 2013 1.0968 2014 2.0234 2015 1.3486