Year	Number per 1,000 Live Births
1970-01-01	58.6
1971-01-01	53.5
1972-01-01	48.7
1973-01-01	44.1
1974-01-01	39.9
1975-01-01	36.2
1976-01-01	33.0
1977-01-01	30.3
1978-01-01	28.2
1979-01-01	26.5
1980-01-01	25.1
1981-01-01	24.0
1982-01-01	23.1
1983-01-01	22.4
1984-01-01	21.7
1985-01-01	21.1
1986-01-01	20.4
1987-01-01	19.9
1988-01-01	19.4
1989-01-01	19.0
1990-01-01	18.6
1991-01-01	18.4
1992-01-01	18.0
1993-01-01	17.7
1994-01-01	17.3
1995-01-01	16.9
1996-01-01	16.6
1997-01-01	16.3
1998-01-01	16.0
1999-01-01	15.8
2000-01-01	15.6
2001-01-01	15.6
2002-01-01	15.6
2003-01-01	15.8
2004-01-01	15.9
2005-01-01	16.0
2006-01-01	16.2
2007-01-01	16.3
2008-01-01	16.3
2009-01-01	16.4
2010-01-01	16.3
2011-01-01	16.3
2012-01-01	16.1
2013-01-01	16.0
2014-01-01	15.8
2015-01-01	15.5
2016-01-01	15.3
2017-01-01	14.9