Year per 1,000 people 1960 44.788 1961 44.839 1962 45.136 1963 44.849 1964 44.497 1965 43.891 1966 43.452 1967 42.613 1968 41.88 1969 41.172 1970 40.785 1971 40.472 1972 40.298 1973 40.168 1974 39.967 1975 39.613 1976 39.209 1977 39.036 1978 38.909 1979 38.583 1980 38.324 1981 38.293 1982 38.424 1983 38.482 1984 38.525 1985 38.348 1986 37.623 1987 37.139 1988 36.376 1989 34.987 1990 33.841 1991 31.901 1992 29.281 1993 26.833 1994 25.329 1995 24.216 1996 22.992 1997 21.847 1998 21.097 1999 20.769 2000 20.419 2001 19.935 2002 19.378 2003 18.675 2004 18.477 2005 18.673 2006 19.841 2007 21.352 2008 22.753 2009 23.613 2010 23.349 2011 24.13 2012 25.297 2013 26.333 2014 26.677 2015 26.352 2016 25.365 2017 24.222 2018 23.836 2019 23.292 2020 22.405 2021 21.413 2022 20.447