Year per 1,000 people 1960 45.659 1961 45.737 1962 45.73 1963 45.635 1964 45.453 1965 45.191 1966 44.864 1967 44.487 1968 44.066 1969 43.6 1970 43.055 1971 42.384 1972 41.583 1973 40.679 1974 39.759 1975 39.086 1976 38.268 1977 37.85 1978 37.893 1979 38.327 1980 38.969 1981 41.321 1982 41.623 1983 41.892 1984 42.155 1985 42.417 1986 42.53 1987 42.478 1988 42.45 1989 42.334 1990 42.195 1991 41.756 1992 41.571 1993 41.196 1994 40.913 1995 40.638 1996 40.247 1997 39.892 1998 39.611 1999 39.408 2000 39.095 2001 39.117 2002 38.954 2003 38.298 2004 37.598 2005 36.475 2006 35.355 2007 34.191 2008 33.173 2009 32.315 2010 31.39 2011 30.667 2012 29.822 2013 29.144 2014 28.429 2015 27.7 2016 27.018 2017 26.487 2018 25.921 2019 25.511 2020 25.258 2021 24.944 2022 24.611