Year	Number per 1,000 Live Births
1981-01-01	13.4
1982-01-01	13.0
1983-01-01	12.7
1984-01-01	12.4
1985-01-01	12.3
1986-01-01	12.0
1987-01-01	11.5
1988-01-01	11.1
1989-01-01	10.7
1990-01-01	10.3
1991-01-01	9.9
1992-01-01	9.3
1993-01-01	8.6
1994-01-01	7.9
1995-01-01	7.1
1996-01-01	6.4
1997-01-01	5.8
1998-01-01	5.2
1999-01-01	4.8
2000-01-01	4.5
2001-01-01	4.3
2002-01-01	4.1
2003-01-01	3.9
2004-01-01	3.7
2005-01-01	3.5
2006-01-01	3.4
2007-01-01	3.2
2008-01-01	3.0
2009-01-01	2.8
2010-01-01	2.7
2011-01-01	2.6
2012-01-01	2.5
2013-01-01	2.5
2014-01-01	2.5
2015-01-01	2.5
2016-01-01	2.6
2017-01-01	2.6