Year per 1,000 people 1960 43.583 1961 43.311 1962 43.037 1963 42.759 1964 42.494 1965 41.96 1966 41.487 1967 41.09 1968 40.694 1969 40.342 1970 39.978 1971 39.571 1972 39.19 1973 38.778 1974 39.041 1975 39.308 1976 39.535 1977 39.772 1978 39.827 1979 39.942 1980 39.952 1981 40.068 1982 40.182 1983 39.833 1984 39.649 1985 39.62 1986 39.503 1987 39.336 1988 39.002 1989 38.689 1990 38.263 1991 37.063 1992 36.351 1993 35.561 1994 34.873 1995 34.229 1996 33.681 1997 33.154 1998 32.562 1999 32.088 2000 31.836 2001 30.994 2002 30.333 2003 29.901 2004 29.466 2005 29.018 2006 28.613 2007 28.175 2008 27.831 2009 27.615 2010 27.527 2011 27.203 2012 26.595 2013 26.09 2014 25.771 2015 25.51 2016 25.254 2017 24.98 2018 24.579 2019 24.304 2020 23.936 2021 23.498 2022 23.146