Year	Number per 1,000 Live Births
1963-01-01	41.7
1964-01-01	40.6
1965-01-01	39.7
1966-01-01	39.4
1967-01-01	39.6
1968-01-01	39.6
1969-01-01	39.1
1970-01-01	37.4
1971-01-01	34.5
1972-01-01	31.0
1973-01-01	27.9
1974-01-01	26.1
1975-01-01	24.8
1976-01-01	23.1
1977-01-01	20.8
1978-01-01	18.7
1979-01-01	17.4
1980-01-01	16.7
1981-01-01	16.5
1982-01-01	16.2
1983-01-01	16.0
1984-01-01	15.6
1985-01-01	15.0
1986-01-01	14.1
1987-01-01	13.2
1988-01-01	12.2
1989-01-01	11.3
1990-01-01	10.5
1991-01-01	9.8
1992-01-01	9.2
1993-01-01	8.8
1994-01-01	8.5
1995-01-01	8.3
1996-01-01	8.1
1997-01-01	7.6
1998-01-01	7.1
1999-01-01	6.6
2000-01-01	6.3
2001-01-01	6.1
2002-01-01	6.0
2003-01-01	6.0
2004-01-01	5.8
2005-01-01	5.6
2006-01-01	5.4
2007-01-01	5.1
2008-01-01	5.0
2009-01-01	4.8
2010-01-01	4.6
2011-01-01	4.5
2012-01-01	4.5
2013-01-01	4.4
2014-01-01	4.3
2015-01-01	4.3
2016-01-01	4.2
2017-01-01	4.1