Year per 1,000 people 1960 53.288 1961 53.703 1962 54.016 1963 54.307 1964 54.064 1965 54.05 1966 54.161 1967 54.298 1968 54.342 1969 54.082 1970 53.851 1971 53.619 1972 53.467 1973 53.219 1974 52.984 1975 52.867 1976 52.793 1977 52.747 1978 52.62 1979 52.51 1980 52.641 1981 52.277 1982 51.911 1983 51.312 1984 50.664 1985 50.348 1986 49.911 1987 49.489 1988 48.879 1989 48.266 1990 47.778 1991 47.483 1992 47.232 1993 46.908 1994 46.622 1995 46.324 1996 46.003 1997 46.062 1998 46.188 1999 45.987 2000 45.366 2001 45.192 2002 45.084 2003 45.066 2004 44.961 2005 44.893 2006 44.373 2007 43.609 2008 42.685 2009 41.811 2010 40.825 2011 39.89 2012 38.794 2013 37.85 2014 36.791 2015 35.767 2016 34.824 2017 34.343 2018 33.925 2019 33.598 2020 33.233 2021 32.859 2022 32.611