Year	Number per 1,000 Live Births
1960-01-01	30.4
1961-01-01	27.9
1962-01-01	25.5
1963-01-01	23.1
1964-01-01	21
1965-01-01	19.1
1966-01-01	17.6
1967-01-01	16.3
1968-01-01	15.1
1969-01-01	14.2
1970-01-01	13.4
1971-01-01	12.6
1972-01-01	11.9
1973-01-01	11.3
1974-01-01	10.6
1975-01-01	10
1976-01-01	9.4
1977-01-01	8.8
1978-01-01	8.3
1979-01-01	7.8
1980-01-01	7.4
1981-01-01	7.0
1982-01-01	6.6
1983-01-01	6.2
1984-01-01	5.8
1985-01-01	5.5
1986-01-01	5.2
1987-01-01	5.0
1988-01-01	4.8
1989-01-01	4.7
1990-01-01	4.6
1991-01-01	4.5
1992-01-01	4.4
1993-01-01	4.4
1994-01-01	4.2
1995-01-01	4.1
1996-01-01	4.0
1997-01-01	3.8
1998-01-01	3.6
1999-01-01	3.4
2000-01-01	3.3
2001-01-01	3.1
2002-01-01	3.0
2003-01-01	2.9
2004-01-01	2.8
2005-01-01	2.8
2006-01-01	2.7
2007-01-01	2.6
2008-01-01	2.5
2009-01-01	2.4
2010-01-01	2.4
2011-01-01	2.4
2012-01-01	2.2
2013-01-01	2.1
2014-01-01	2.1
2015-01-01	2.1
2016-01-01	1.9
2017-01-01	1.9