Year per 1,000 people 1960 44.178 1961 44.677 1962 45.094 1963 45.321 1964 45.381 1965 45.409 1966 45.396 1967 45.323 1968 45.211 1969 45.068 1970 45.078 1971 45.121 1972 44.967 1973 44.941 1974 44.88 1975 44.935 1976 45.176 1977 45.445 1978 45.569 1979 45.797 1980 45.917 1981 46.122 1982 46.189 1983 45.609 1984 45.292 1985 45.218 1986 45.333 1987 45.168 1988 44.742 1989 44.371 1990 44.137 1991 43.864 1992 43.518 1993 43.102 1994 42.664 1995 42.09 1996 41.487 1997 41.07 1998 41.055 1999 41.287 2000 41.018 2001 40.775 2002 40.954 2003 41.191 2004 41.264 2005 41.088 2006 40.956 2007 40.786 2008 40.553 2009 40.33 2010 39.958 2011 39.368 2012 38.76 2013 38.237 2014 37.818 2015 37.807 2016 37.747 2017 37.403 2018 36.716 2019 36.147 2020 35.507 2021 34.938 2022 34.352