Year per 1,000 people 1960 58.121 1961 57.903 1962 57.683 1963 57.45 1964 57.192 1965 56.784 1966 56.581 1967 56.322 1968 55.995 1969 55.808 1970 55.718 1971 55.659 1972 55.564 1973 55.579 1974 55.627 1975 55.651 1976 55.645 1977 55.722 1978 56.237 1979 56.68 1980 57.072 1981 57.251 1982 57.081 1983 56.9 1984 57.126 1985 56.895 1986 56.363 1987 56.212 1988 55.618 1989 55.225 1990 55.165 1991 54.816 1992 54.492 1993 54.254 1994 53.953 1995 54.068 1996 53.93 1997 53.659 1998 53.399 1999 52.957 2000 52.659 2001 52.219 2002 51.841 2003 51.456 2004 51.058 2005 50.63 2006 50.096 2007 49.694 2008 49.297 2009 48.882 2010 48.51 2011 47.99 2012 47.398 2013 47.123 2014 46.752 2015 46.558 2016 46.52 2017 46.351 2018 46.127 2019 45.859 2020 45.588 2021 45.293 2022 45.029