Year Per 100,000 People 1954 10.4683 1955 8.9895 1956 10.3566 1957 10.2364 1958 9.2689 1959 10.5226 1960 9.7109 1961 11.721 1962 10.173 1963 10.441 1964 12.3818 1965 12.5088 1966 10.8467 1967 13.3092 1968 11.6841 1969 12.6244 1970 14.5602 1971 14.185 1972 14.4614 1973 11.1114 1974 15.6465 1975 14.0153 1976 16.0314 1977 20.0619 1978 23.5318 1979 22.1048 1980 25.3258 1981 24.0296 1982 23.8016 1983 28.9546 1984 27.5064 1985 27.3365 1986 27.1126 1987 26.8128 1988 23.4718 1989 23.2528 1990 22.4574 1991 23.2029 1992 22.9824 1993 26.0433 1994 27.5718 1995 27.5326 1996 25.8804 1997 26.7011 1998 25.2113 1999 23.3706 2000 27.4421 2001 27.7858 2002 25.6986 2003 24.9576 2004 24.4699 2005 23.43 2006 24.0817 2007 21.2758 2008 23.0276 2009 23.5643 2010 22.5013 2011 21.4503 2012 20.4789 2013 19.4228 2014 19.4078 2015 18.108