Year Per 100,000 People 1955 20.6032 1956 19.9323 1957 20.9608 1958 20.7956 1959 21.822 1960 20.1941 1961 19.2439 1962 19.7155 1963 19.3265 1964 19.9961 1965 20.1631 1966 20.4007 1967 19.6402 1968 19.636 1969 20.0162 1970 21.9344 1971 20.3132 1972 20.8772 1973 19.629 1974 21.1571 1975 21.4803 1976 20.1153 1977 21.4817 1978 22.2197 1979 22.3192 1980 22.5724 1981 23.4636 1982 24.1314 1983 23.3211 1984 23.0961 1985 23.7886 1986 24.3693 1987 22.8565 1988 20.4499 1989 20.6906 1990 19.4776 1991 18.6965 1992 18.5978 1993 17.6928 1994 18.56 1995 18.493 1996 17.9637 1997 16.3587 1998 15.9319 1999 15.6866 2000 15.8816 2001 14.7638 2002 15.1611 2003 14.0748 2004 13.6573 2005 13.1105 2006 11.9476 2007 11.8293 2008 11.1757 2009 11.3825 2010 11.3613 2011 11.3591 2012 10.882 2013 10.6818 2014 11.2076 2015 10.2381 2016 9.7466