Year per 1,000 people 1960 11.1999998092651 1961 11.3000001907349 1962 11.3999996185303 1963 11.6999998092651 1964 11.8000001907349 1965 11.8999996185303 1966 11.8000001907349 1967 11.8000001907349 1968 11.8000001907349 1969 11.6999998092651 1970 11.6999998092651 1971 11.6000003814697 1972 11.8000001907349 1973 11.8000001907349 1974 12 1975 11.8999996185303 1976 11.8999996185303 1977 12.1000003814697 1978 12.1000003814697 1979 12.1999998092651 1980 12.3000001907349 1981 12.1999998092651 1982 12.1000003814697 1983 11.8999996185303 1984 11.6999998092651 1985 10.8999996185303 1987 10.5 1989 9.80000019073486 1991 9.1999998093 1992 8.8999996185 1993 8.8999996185 1994 8.6999998093 1995 8.6999998093 1996 8.5 1997 8.3000001907 1998 8.1999998093 1999 7.9000000954 2000 4.04 2001 3.95 2002 3.93 2003 3.97 2004 4 2005 3.9 2006 3.93 2008 3.82 2009 3.77 2010 3.78 2011 3.79 2012 3.75 2013 3.74 2014 3.79 2015 3.82 2016 3.84