Year per 1,000 people 1960 46.684 1961 46.816 1962 46.886 1963 46.843 1964 46.703 1965 47.084 1966 46.54 1967 45.592 1968 44.413 1969 43.142 1970 41.98 1971 40.857 1972 40.21 1973 39.842 1974 39.514 1975 39.221 1976 38.845 1977 37.87 1978 36.383 1979 35.266 1980 34.3 1981 34.289 1982 33.778 1983 33.267 1984 32.88 1985 32.316 1986 31.582 1987 30.168 1988 28.647 1989 26.991 1990 26.426 1991 25.552 1992 24.63 1993 23.626 1994 22.553 1995 21.3 1996 20.146 1997 19.126 1998 18.179 1999 17.305 2000 17.002 2001 16.686 2002 16.531 2003 16.68 2004 16.754 2005 16.883 2006 16.916 2007 17.085 2008 17.328 2009 17.667 2010 18.211 2011 18.934 2012 19.184 2013 19.33 2014 19.303 2015 19.119 2016 18.78 2017 18.399 2018 17.737 2019 17.215 2020 16.628 2021 16.093 2022 15.6