Year Per 100,000 People 1967 31.1875 1968 27.9724 1969 34.0603 1970 38.5846 1971 27.5304 1972 21.431 1973 11.2199 1974 41.113 1975 33.876 1976 9.3385 1977 19.7539 1978 20.0069 1979 26.6642 1980 31.9712 1981 24.9433 1982 23.5181 1983 29.4056 1984 10.2117 1985 15.0833 1986 26.6327 1987 22.76 1988 25.9186 1989 17.2073 1990 15.7819 1991 13.0012 1992 15.1947 1993 18.6201 1994 15.3678 1995 14.9865 1996 14.9225 1997 10.4448 1998 6.3864 1999 9.99 2000 8.6161 2001 9.7368 2002 8.2933 2003 8.1092 2004 5.5674 2005 5.4386 2006 3.1616 2007 5.1082 2008 7.0088 2009 7.7774 2010 5.6379 2011 1.8248 2012 1.7549 2013 7.6599 2014 5.7369 2015 6.4732