Year	Number per 1,000 Live Births
1960-01-01	16.5
1961-01-01	16.1
1962-01-01	15.7
1963-01-01	15.3
1964-01-01	14.9
1965-01-01	14.5
1966-01-01	14.1
1967-01-01	13.8
1968-01-01	13.4
1969-01-01	12.9
1970-01-01	12.4
1971-01-01	12.0
1972-01-01	11.5
1973-01-01	11.1
1974-01-01	10.7
1975-01-01	10.3
1976-01-01	9.9
1977-01-01	9.6
1978-01-01	9.3
1979-01-01	9.0
1980-01-01	8.8
1981-01-01	8.6
1982-01-01	8.4
1983-01-01	8.2
1984-01-01	8.1
1985-01-01	7.9
1986-01-01	7.7
1987-01-01	7.5
1988-01-01	7.3
1989-01-01	7.1
1990-01-01	6.8
1991-01-01	6.6
1992-01-01	6.3
1993-01-01	6.1
1994-01-01	5.9
1995-01-01	5.7
1996-01-01	5.5
1997-01-01	5.4
1998-01-01	5.3
1999-01-01	5.2
2000-01-01	5.1
2001-01-01	5.0
2002-01-01	4.9
2003-01-01	4.8
2004-01-01	4.6
2005-01-01	4.4
2006-01-01	4.3
2007-01-01	4.1
2008-01-01	4.0
2009-01-01	3.8
2010-01-01	3.7
2011-01-01	3.6
2012-01-01	3.6
2013-01-01	3.5
2014-01-01	3.5
2015-01-01	3.4
2016-01-01	3.4
2017-01-01	3.3