Year per 1,000 people 1960 48.624 1961 48.682 1962 48.725 1963 48.772 1964 48.757 1965 48.703 1966 48.561 1967 48.347 1968 48.077 1969 47.753 1970 47.373 1971 46.977 1972 46.592 1973 46.187 1974 45.729 1975 45.399 1976 45.047 1977 44.664 1978 44.242 1979 43.777 1980 43.268 1981 42.727 1982 42.166 1983 41.59 1984 41.001 1985 40.374 1986 39.864 1987 39.199 1988 38.504 1989 37.809 1990 36.986 1991 36.161 1992 35.21 1993 34.249 1994 33.207 1995 31.978 1996 30.673 1997 29.235 1998 28.097 1999 26.845 2000 25.58 2001 24.384 2002 23.399 2003 22.386 2004 22.451 2005 22 2006 21.337 2007 21.078 2008 20.651 2009 20.009 2010 19.541 2011 18.994 2012 18.541 2013 18.218 2014 17.743 2015 17.152 2016 16.076 2017 14.912 2018 13.789 2019 12.871 2020 12.65 2021 12.482 2022 12.332