Year per 1,000 people 1960 46.953 1961 46.775 1962 46.728 1963 46.625 1964 46.509 1965 46.198 1966 45.834 1967 45.381 1968 44.996 1969 44.532 1970 43.906 1971 43.261 1972 42.757 1973 42.141 1974 41.352 1975 40.331 1976 39.495 1977 38.565 1978 37.891 1979 36.586 1980 35.452 1981 34.698 1982 33.952 1983 33.242 1984 32.807 1985 32.445 1986 31.944 1987 31.04 1988 30.216 1989 29.77 1990 29.297 1991 28.943 1992 28.589 1993 28.144 1994 27.54 1995 26.87 1996 26.225 1997 25.511 1998 24.925 1999 24.618 2000 24.158 2001 23.717 2002 23.256 2003 22.802 2004 22.351 2005 21.9 2006 21.459 2007 21.082 2008 20.749 2009 20.442 2010 20.152 2011 19.917 2012 19.635 2013 19.326 2014 18.711 2015 17.968 2016 17.42 2017 16.947 2018 16.465 2019 15.71 2020 15.565 2021 14.857 2022 14.636