Year per 1,000 live births 1968 267.1 1969 260.8 1970 254.9 1971 248.7 1972 242.4 1973 236.3 1974 229.9 1975 223.5 1976 217.1 1977 210.6 1978 203.8 1979 196.8 1980 189.8 1981 182.7 1982 175.3 1983 168.1 1984 161.2 1985 154.5 1986 148 1987 141.6 1988 135.5 1989 129.6 1990 123.9 1991 118.5 1992 113.3 1993 108.4 1994 103.4 1995 98.5 1996 93.6 1997 88.6 1998 83.8 1999 79.1 2000 74.6 2001 70.1 2002 65.7 2003 61.4 2004 57.2 2005 53.1 2006 49.4 2007 45.9 2008 42.7 2009 39.6 2010 36.8 2011 34.4 2012 32.4 2013 30.7 2014 29.2 2015 27.8 2016 26.6 2017 25.6 2018 24.6 2019 23.7 2020 22.9 2021 22.1 2022 21.4