Year per 1,000 people 1960 45.054 1961 45.131 1962 45.033 1963 44.816 1964 44.685 1965 44.313 1966 44.036 1967 43.82 1968 43.723 1969 43.282 1970 42.98 1971 42.691 1972 42.177 1973 41.571 1974 41.704 1975 41.576 1976 41.571 1977 41.32 1978 41.225 1979 41.017 1980 40.532 1981 40.355 1982 40.228 1983 40.114 1984 40.016 1985 39.599 1986 39.277 1987 39.017 1988 38.736 1989 38.348 1990 38.114 1991 37.608 1992 37.147 1993 37.147 1994 36.44 1995 35.642 1996 34.457 1997 33.163 1998 32.323 1999 31.391 2000 30.614 2001 29.522 2002 28.487 2003 27.879 2004 27.071 2005 26.033 2006 24.982 2007 24.194 2008 23.552 2009 23 2010 22.589 2011 22.372 2012 22.335 2013 22.247 2014 22.22 2015 22.05 2016 21.764 2017 21.376 2018 21.026 2019 20.868 2020 20.64 2021 20.402 2022 20.165