Year per 1,000 people 1960 44.359 1961 44.259 1962 44.11 1963 43.914 1964 43.699 1965 43.469 1966 43.228 1967 43.054 1968 42.883 1969 42.647 1970 42.377 1971 42.187 1972 41.86 1973 41.627 1974 41.374 1975 41.014 1976 40.829 1977 40.58 1978 40.266 1979 39.899 1980 39.524 1981 39.136 1982 38.693 1983 38.27 1984 37.915 1985 37.638 1986 37.347 1987 37.109 1988 36.715 1989 36.278 1990 35.84 1991 35.263 1992 34.645 1993 33.91 1994 33.084 1995 32.406 1996 31.875 1997 31.126 1998 30.703 1999 30.39 2000 29.717 2001 29.052 2002 28.572 2003 28.18 2004 27.754 2005 27.424 2006 27.423 2007 26.988 2008 26.546 2009 26.132 2010 25.749 2011 25.338 2012 24.934 2013 24.541 2014 24.14 2015 23.74 2016 23.355 2017 22.986 2018 22.634 2019 22.323 2020 22.056 2021 21.836 2022 21.599