Year Per 100,000 People 1967 23.0979 1968 14.1339 1969 24.1862 1970 23.0676 1971 32.7172 1972 33.1371 1973 28.1814 1974 17.7961 1975 13.3271 1976 21.2231 1977 13.979 1978 22.1208 1979 42.2934 1980 19.4265 1981 19.6225 1982 35.9718 1983 36.3038 1984 18.1508 1985 25.3037 1986 24.504 1987 27.9515 1988 28.6104 1989 26.8228 1990 25.5762 1991 33.7264 1992 28.7102 1993 19.5398 1994 24.7288 1995 22.4501 1996 24.684 1997 23.4475 1998 20.5713 1999 22.7523 2000 24.8914 2001 35.345 2002 45.481 2003 17.1822 2004 22.3331 2005 15.5837 2006 19.6872 2007 23.0431 2008 9.606 2009 15.4531 2010 12.3407 2011 16.8385 2012 14.7062 2013 17.2347 2014 22.3264 2015 23.5153