Year	Number per 1,000 Live Births
1960-01-01	38.4
1961-01-01	35.9
1962-01-01	33.7
1963-01-01	31.9
1964-01-01	30.3
1965-01-01	28.8
1966-01-01	27.4
1967-01-01	26.0
1968-01-01	24.4
1969-01-01	22.5
1970-01-01	20.5
1971-01-01	18.7
1972-01-01	17.3
1973-01-01	16.4
1974-01-01	16.1
1975-01-01	16.3
1976-01-01	16.4
1977-01-01	15.9
1978-01-01	14.8
1979-01-01	13.6
1980-01-01	12.4
1981-01-01	11.3
1982-01-01	10.7
1983-01-01	10.1
1984-01-01	9.6
1985-01-01	9.2
1986-01-01	8.8
1987-01-01	8.4
1988-01-01	8.1
1989-01-01	7.7
1990-01-01	7.5
1991-01-01	7.1
1992-01-01	6.8
1993-01-01	6.4
1994-01-01	6.0
1995-01-01	5.5
1996-01-01	5.1
1997-01-01	4.9
1998-01-01	4.6
1999-01-01	4.5
2000-01-01	4.3
2001-01-01	4.3
2002-01-01	4.2
2003-01-01	4.0
2004-01-01	4.0
2005-01-01	3.8
2006-01-01	3.7
2007-01-01	3.6
2008-01-01	3.4
2009-01-01	3.3
2010-01-01	3.1
2011-01-01	3.1
2012-01-01	3.0
2013-01-01	2.9
2014-01-01	2.8
2015-01-01	2.7
2016-01-01	2.6
2017-01-01	2.6