Year per 1,000 people 1960 44.495 1961 44.417 1962 44.311 1963 44.12 1964 43.935 1965 43.657 1966 43.396 1967 43.151 1968 42.763 1969 42.808 1970 42.844 1971 42.757 1972 42.671 1973 42.682 1974 42.756 1975 42.374 1976 42.077 1977 41.838 1978 41.537 1979 41.216 1980 40.941 1981 40.61 1982 40.31 1983 40.058 1984 39.802 1985 39.591 1986 39.367 1987 38.967 1988 38.69 1989 38.396 1990 38.064 1991 37.73 1992 37.455 1993 37.362 1994 37.316 1995 37.225 1996 36.753 1997 36.194 1998 35.926 1999 35.629 2000 35.271 2001 34.989 2002 34.661 2003 34.397 2004 34.117 2005 33.884 2006 34.007 2007 33.828 2008 33.663 2009 33.562 2010 33.641 2011 33.633 2012 33.619 2013 33.585 2014 33.477 2015 32.928 2016 32.379 2017 31.743 2018 31.219 2019 30.762 2020 30.223 2021 29.785 2022 29.322