Year per 1,000 people 1960 44.877 1961 44.172 1962 43.437 1963 42.716 1964 41.949 1965 41.207 1966 40.478 1967 39.752 1968 39.017 1969 38.256 1970 37.49 1971 36.762 1972 36.189 1973 35.786 1974 35.364 1975 35.037 1976 34.773 1977 34.462 1978 34.109 1979 33.741 1980 33.25 1981 32.724 1982 32.126 1983 31.634 1984 31.208 1985 30.821 1986 30.811 1987 30.45 1988 29.98 1989 29.418 1990 28.834 1991 28.219 1992 27.598 1993 26.99 1994 26.424 1995 25.871 1996 25.41 1997 24.991 1998 24.598 1999 24.27 2000 23.9 2001 23.53 2002 23.208 2003 22.869 2004 22.579 2005 22.334 2006 22.06 2007 21.744 2008 21.433 2009 21.117 2010 20.805 2011 20.466 2012 20.143 2013 19.827 2014 19.507 2015 19.201 2016 18.898 2017 18.502 2018 17.832 2019 16.888 2020 16.213 2021 15.877 2022 15.573