Year	Number per 1,000 Live Births
1960-01-01	22.6
1961-01-01	21.8
1962-01-01	20.9
1963-01-01	20
1964-01-01	19.3
1965-01-01	18.7
1966-01-01	18.3
1967-01-01	17.9
1968-01-01	17.5
1969-01-01	17.2
1970-01-01	16.9
1971-01-01	16.5
1972-01-01	16.1
1973-01-01	15.8
1974-01-01	15.4
1975-01-01	14.9
1976-01-01	14.4
1977-01-01	13.9
1978-01-01	13.5
1979-01-01	13.1
1980-01-01	12.7
1981-01-01	12.4
1982-01-01	12.1
1983-01-01	11.9
1984-01-01	11.5
1985-01-01	11.3
1986-01-01	11
1987-01-01	10.6
1988-01-01	10.2
1989-01-01	9.7
1990-01-01	9.2
1991-01-01	8.7
1992-01-01	8.2
1993-01-01	7.8
1994-01-01	7.5
1995-01-01	7.1
1996-01-01	6.9
1997-01-01	6.7
1998-01-01	6.4
1999-01-01	6.2
2000-01-01	6.1
2001-01-01	5.9
2002-01-01	5.8
2003-01-01	5.7
2004-01-01	5.5
2005-01-01	5.4
2006-01-01	5.4
2007-01-01	5.3
2008-01-01	5.3
2009-01-01	5.2
2010-01-01	5.1
2011-01-01	5.0
2012-01-01	5.0
2013-01-01	4.9
2014-01-01	4.7
2015-01-01	4.6
2016-01-01	4.5
2017-01-01	4.4