Year	Number per 1,000 Live Births
1964-01-01	25.7
1965-01-01	24.4
1966-01-01	23.2
1967-01-01	22.1
1968-01-01	21.0
1969-01-01	19.9
1970-01-01	18.9
1971-01-01	17.8
1972-01-01	16.8
1973-01-01	15.8
1974-01-01	14.9
1975-01-01	14.1
1976-01-01	13.4
1977-01-01	12.7
1978-01-01	12.2
1979-01-01	11.7
1980-01-01	11.3
1981-01-01	11.0
1982-01-01	10.6
1983-01-01	10.2
1984-01-01	9.8
1985-01-01	9.4
1986-01-01	9.0
1987-01-01	8.6
1988-01-01	8.1
1989-01-01	7.7
1990-01-01	7.3
1991-01-01	6.8
1992-01-01	6.4
1993-01-01	6.0
1994-01-01	5.6
1995-01-01	5.3
1996-01-01	5.0
1997-01-01	4.7
1998-01-01	4.4
1999-01-01	4.2
2000-01-01	3.9
2001-01-01	3.7
2002-01-01	3.5
2003-01-01	3.3
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	2.5
2010-01-01	2.4
2011-01-01	2.4
2012-01-01	2.3
2013-01-01	2.3
2014-01-01	2.2
2015-01-01	2.2
2016-01-01	2.1
2017-01-01	2.1