Year per 1,000 people 1960 10.232 1961 9.926 1962 9.716 1963 9.36 1964 9.019 1965 8.626 1966 8.192 1967 7.829 1968 7.477 1969 7.15 1970 6.943 1971 6.529 1972 6.335 1973 5.874 1974 5.706 1975 5.402 1976 5.134 1977 4.849 1978 4.587 1979 4.577 1980 4.462 1981 4.219 1982 4.005 1983 3.927 1984 3.975 1985 4.014 1986 3.935 1987 3.902 1988 3.83 1989 3.826 1990 3.758 1991 3.823 1992 3.865 1993 3.894 1994 3.961 1995 4.057 1996 4.019 1997 3.985 1998 4.114 1999 4.088 2000 3.995 2001 4.089 2002 3.999 2003 4.055 2004 4.047 2005 4.078 2006 4.176 2007 4.304 2008 4.421 2009 4.433 2010 4.552 2011 4.379 2012 4.541 2013 4.62 2014 5.059 2015 5.034 2016 4.986 2017 5.18 2018 5.276 2019 5.468 2020 5.627 2021 7.192 2022 7.113