Year per 1,000 people 1960 51.026 1961 51.282 1962 51.316 1963 51.323 1964 51.282 1965 51.282 1966 51.295 1967 51.314 1968 51.348 1969 51.353 1970 51.267 1971 50.698 1972 50.474 1973 50.467 1974 50.472 1975 50.469 1976 50.514 1977 50.523 1978 50.616 1979 50.732 1980 50.892 1981 51.109 1982 51.307 1983 51.61 1984 51.935 1985 52.136 1986 52.19 1987 52.146 1988 51.973 1989 51.699 1990 51.344 1991 50.926 1992 50.374 1993 49.893 1994 49.55 1995 49.185 1996 48.86 1997 48.412 1998 48.009 1999 47.773 2000 47.647 2001 47.574 2002 47.448 2003 47.226 2004 47.099 2005 46.944 2006 46.643 2007 46.29 2008 45.889 2009 45.495 2010 44.97 2011 44.364 2012 43.86 2013 43.282 2014 42.676 2015 42.02 2016 41.377 2017 40.81 2018 40.236 2019 39.725 2020 39.271 2021 38.809 2022 38.2