Year	Number per 1,000 Live Births
1960-01-01	22.9
1961-01-01	22.4
1962-01-01	22
1963-01-01	21.4
1964-01-01	20.8
1965-01-01	20.1
1966-01-01	19.6
1967-01-01	19.1
1968-01-01	18.7
1969-01-01	18.4
1970-01-01	18
1971-01-01	17.7
1972-01-01	17.1
1973-01-01	16.6
1974-01-01	16
1975-01-01	15.4
1976-01-01	14.7
1977-01-01	14.1
1978-01-01	13.4
1979-01-01	12.7
1980-01-01	12
1981-01-01	11.4
1982-01-01	10.8
1983-01-01	10.4
1984-01-01	10
1985-01-01	9.7
1986-01-01	9.5
1987-01-01	9.2
1988-01-01	8.9
1989-01-01	8.4
1990-01-01	7.9
1991-01-01	7.4
1992-01-01	7.0
1993-01-01	6.5
1994-01-01	6.3
1995-01-01	6.1
1996-01-01	5.9
1997-01-01	5.9
1998-01-01	5.8
1999-01-01	5.7
2000-01-01	5.5
2001-01-01	5.4
2002-01-01	5.3
2003-01-01	5.3
2004-01-01	5.3
2005-01-01	5.1
2006-01-01	5.0
2007-01-01	4.9
2008-01-01	4.8
2009-01-01	4.6
2010-01-01	4.4
2011-01-01	4.2
2012-01-01	4.1
2013-01-01	3.9
2014-01-01	3.8
2015-01-01	3.8
2016-01-01	3.7
2017-01-01	3.7