Year per 1,000 people 1960 47.405 1961 46.794 1962 46.168 1963 45.685 1964 45.014 1965 44.078 1966 43.693 1967 43.122 1968 42.609 1969 42.153 1970 41.677 1971 41.417 1972 41.225 1973 40.739 1974 40.709 1975 40.781 1976 40.693 1977 40.622 1978 40.7 1979 40.779 1980 40.195 1981 39.483 1982 39.208 1983 39.125 1984 38.481 1985 38.018 1986 37.357 1987 36.772 1988 35.914 1989 34.605 1990 33.207 1991 32.028 1992 31.729 1993 30.701 1994 29.787 1995 29.01 1996 28.336 1997 27.935 1998 27.799 1999 27.356 2000 26.986 2001 26.833 2002 26.477 2003 26.336 2004 25.97 2005 25.977 2006 25.882 2007 26.16 2008 26.146 2009 26.291 2010 27.16 2011 27.379 2012 27.978 2013 28.455 2014 28.416 2015 28.078 2016 25.913 2017 25.231 2018 24.562 2019 23.568 2020 23.051 2021 22.558 2022 22.107