Year per 1,000 live births 1974 44.2 1975 43 1976 41.6 1977 40.3 1978 39.1 1979 38.1 1980 37.2 1981 36.6 1982 36 1983 35.4 1984 34.8 1985 34.1 1986 33.6 1987 33.1 1988 32.7 1989 32.5 1990 32.5 1991 32.8 1992 32.9 1993 32.9 1994 32.7 1995 32.6 1996 32.4 1997 32.2 1998 31.8 1999 31.3 2000 30.8 2001 30.2 2002 29.7 2003 29.2 2004 28.8 2005 28.5 2006 28.2 2007 27.9 2008 27.6 2009 27.1 2010 26.7 2011 26.2 2012 25.6 2013 25.1 2014 24.7 2015 24.2 2016 23.7 2017 23.2 2018 22.7 2019 22.2 2020 21.7 2021 21.2 2022 20.7