Year per 1,000 people 1960 43.841 1961 44.099 1962 43.541 1963 42.993 1964 42.465 1965 42.173 1966 41.895 1967 40.585 1968 39.191 1969 37.777 1970 36.768 1971 35.791 1972 35.143 1973 34.691 1974 34.582 1975 34.509 1976 34.553 1977 34.928 1978 35.317 1979 35.751 1980 36.261 1981 36.75 1982 37.214 1983 37.467 1984 37.752 1985 38.093 1986 38.02 1987 37.776 1988 37.42 1989 37.061 1990 36.577 1991 36.276 1992 35.559 1993 34.784 1994 34.216 1995 33.658 1996 33.519 1997 32.878 1998 32.239 1999 31.46 2000 30.702 2001 29.87 2002 29.025 2003 28.272 2004 28.583 2005 28.821 2006 29.26 2007 29.88 2008 30.398 2009 30.578 2010 30.783 2011 30.995 2012 30.544 2013 30.075 2014 29.547 2015 29.188 2016 28.86 2017 28.616 2018 28.46 2019 28.064 2020 27.645 2021 27.207 2022 26.723