Year per 1,000 people 1960 51.927 1961 52.044 1962 52.185 1963 51.969 1964 51.591 1965 51.021 1966 50.295 1967 49.687 1968 49.113 1969 48.661 1970 48.302 1971 47.72 1972 47.219 1973 47.385 1974 47.223 1975 46.784 1976 46.748 1977 46.799 1978 46.798 1979 46.7 1980 46.636 1981 46.606 1982 46.915 1983 47.311 1984 47.448 1985 47.495 1986 46.813 1987 45.796 1988 44.562 1989 43.043 1990 41.294 1991 39.144 1992 36.998 1993 34.903 1994 32.731 1995 30.575 1996 28.24 1997 25.971 1998 24.013 1999 22.103 2000 20.539 2001 19.464 2002 18.952 2003 18.791 2004 18.861 2005 18.989 2006 19.584 2007 20.554 2008 21.371 2009 21.644 2010 21.165 2011 20.527 2012 19.865 2013 18.895 2014 18.044 2015 17.465 2016 16.794 2017 16.126 2018 15.531 2019 15.001 2020 14.576 2021 14.088 2022 13.638