Year per 1,000 live births 1971 41.4 1972 40.5 1973 39.5 1974 38.5 1975 36.9 1976 34.8 1977 32.1 1978 29.2 1979 26.3 1980 23.8 1981 21.6 1982 19.6 1983 17.7 1984 16 1985 14.5 1986 13.3 1987 12.6 1988 12.3 1989 12.2 1990 12.1 1991 11.9 1992 11.5 1993 11 1994 10.4 1995 9.8 1996 9.2 1997 8.6 1998 8 1999 7.4 2000 6.9 2001 6.4 2002 6 2003 5.6 2004 5.3 2005 4.9 2006 4.6 2007 4.3 2008 4 2009 3.8 2010 3.6 2011 3.4 2012 3.3 2013 3.2 2014 3.1 2015 3.1 2016 3.2 2017 3.2 2018 3.3 2019 3.4 2020 3.6 2021 3.7 2022 3.7