Year Per 100,000 People 1961 7.07 1962 8.4083 1963 10.9398 1964 14.4009 1965 14.4991 1966 15.3235 1967 15.9369 1968 12.6008 1969 12.3739 1970 13.396 1971 15.09 1972 15.77 1973 19.4077 1974 19.808 1975 21.1453 1976 24.3182 1977 24.0244 1978 27.3539 1979 28.8139 1980 26.9391 1981 26.8474 1982 33.7188 1983 33.4769 1984 35.2155 1985 34.3336 1986 31.9505 1987 32.1443 1988 30.4292 1989 34.0468 1990 34.7367 1991 36.1265 1992 34.2314 1993 32.9685 1994 33.9684 1995 33.5876 1996 34.3695 1997 31.6985 1998 31.6918 1999 31.7934 2000 29.4002 2001 29.5279 2002 23.8102 2003 26.6903 2004 28.611 2005 28.91 2006 27.179 2007 27.5774 2008 25.5989 2009 24.7482 2010 20.9567 2011 18.4519 2012 15.7883 2013 14.3326 2014 13.3319 2015 13.9178