Year per 1,000 people 1960 50.34 1961 50.443 1962 50.57 1963 50.703 1964 50.831 1965 50.872 1966 50.986 1967 51.081 1968 51.148 1969 51.195 1970 51.122 1971 51.163 1972 51.109 1973 51.114 1974 51.135 1975 51.018 1976 50.935 1977 50.921 1978 50.816 1979 50.737 1980 50.482 1981 50.264 1982 50.138 1983 50.139 1984 50.235 1985 50.553 1986 50.728 1987 50.845 1988 50.98 1989 51.162 1990 51.423 1991 51.788 1992 51.948 1993 52.038 1994 52.174 1995 52.073 1996 51.873 1997 51.4 1998 50.88 1999 50.351 2000 49.664 2001 48.979 2002 48.201 2003 47.35 2004 46.33 2005 45.263 2006 44.721 2007 43.858 2008 41.506 2009 41.157 2010 40.602 2011 39.855 2012 40.009 2013 39.601 2014 39.105 2015 38.803 2016 37.936 2017 37.342 2018 36.927 2019 36.466 2020 36.051 2021 35.842 2022 35.143