Year	Number per 1,000 Live Births
1960-01-01	16.3
1961-01-01	16
1962-01-01	15.6
1963-01-01	15
1964-01-01	14.3
1965-01-01	13.7
1966-01-01	13
1967-01-01	12.5
1968-01-01	12.1
1969-01-01	11.7
1970-01-01	11.3
1971-01-01	10.9
1972-01-01	10.4
1973-01-01	9.8
1974-01-01	9.3
1975-01-01	8.7
1976-01-01	8.3
1977-01-01	7.9
1978-01-01	7.6
1979-01-01	7.3
1980-01-01	7.1
1981-01-01	6.9
1982-01-01	6.8
1983-01-01	6.6
1984-01-01	6.5
1985-01-01	6.4
1986-01-01	6.3
1987-01-01	6.2
1988-01-01	6.1
1989-01-01	6.1
1990-01-01	5.9
1991-01-01	5.5
1992-01-01	5.2
1993-01-01	4.8
1994-01-01	4.4
1995-01-01	4.0
1996-01-01	3.8
1997-01-01	3.6
1998-01-01	3.5
1999-01-01	3.4
2000-01-01	3.4
2001-01-01	3.4
2002-01-01	3.3
2003-01-01	3.2
2004-01-01	3.1
2005-01-01	3.0
2006-01-01	2.8
2007-01-01	2.7
2008-01-01	2.6
2009-01-01	2.6
2010-01-01	2.5
2011-01-01	2.5
2012-01-01	2.5
2013-01-01	2.4
2014-01-01	2.4
2015-01-01	2.4
2016-01-01	2.4
2017-01-01	2.3