Year per 1,000 people 1960 16.888 1961 16.431 1962 16.178 1963 15.527 1964 15.105 1965 14.671 1966 14.196 1967 13.748 1968 13.264 1969 12.848 1970 12.361 1971 12.005 1972 11.555 1973 11.092 1974 10.668 1975 10.293 1976 9.962 1977 9.68 1978 9.395 1979 9.158 1980 8.952 1981 8.788 1982 8.692 1983 8.615 1984 8.542 1985 8.445 1986 8.421 1987 8.324 1988 8.281 1989 8.179 1990 8.119 1991 8.046 1992 7.918 1993 7.816 1994 7.726 1995 7.618 1996 7.621 1997 7.536 1998 7.917 1999 7.468 2000 7.471 2001 7.473 2002 7.54 2003 7.524 2004 7.559 2005 7.563 2006 7.532 2007 7.501 2008 7.287 2009 7.215 2010 7.134 2011 6.951 2012 6.891 2013 6.825 2014 6.734 2015 6.585 2016 6.57 2017 6.508 2018 6.532 2019 6.468 2020 6.402 2021 6.683 2022 6.459