Year	Number per 1,000 Live Births
1967-01-01	20.1
1968-01-01	20.7
1969-01-01	19.7
1970-01-01	17.9
1971-01-01	16.6
1972-01-01	16.6
1973-01-01	17.1
1974-01-01	17.5
1975-01-01	17.7
1976-01-01	17.7
1977-01-01	17.6
1978-01-01	17.2
1979-01-01	16.7
1980-01-01	16
1981-01-01	15.5
1982-01-01	15.1
1983-01-01	14.8
1984-01-01	14.4
1985-01-01	13.8
1986-01-01	12.9
1987-01-01	11.9
1988-01-01	11.2
1989-01-01	11.3
1990-01-01	12.0
1991-01-01	13.1
1992-01-01	14.1
1993-01-01	14.4
1994-01-01	13.5
1995-01-01	11.9
1996-01-01	10.6
1997-01-01	9.8
1998-01-01	9.3
1999-01-01	8.9
2000-01-01	8.6
2001-01-01	8.2
2002-01-01	7.9
2003-01-01	7.6
2004-01-01	7.4
2005-01-01	7.2
2006-01-01	6.9
2007-01-01	6.5
2008-01-01	5.9
2009-01-01	5.3
2010-01-01	4.9
2011-01-01	4.5
2012-01-01	4.2
2013-01-01	4.0
2014-01-01	4.0
2015-01-01	4.0
2016-01-01	3.8
2017-01-01	3.4