Year	Per 1000 Births
1960	40
1970	21
1980	22.4
1981	21.6
1982	20.9
1983	20.2
1984	19.6
1985	19
1986	18.5
1987	18
1988	17.6
1989	17.1
1990	16.5
1991	15.9
1992	15.2
1993	14.5
1994	13.6
1995	12.8
1996	12
1997	11.1
1998	10.3
1999	9.6
2000	8.8
2001	8.2
2002	7.5
2003	6.9
2004	6.3
2005	5.8
2006	5.3
2007	4.8
2008	4.4
2009	4
2010	3.6
2011	3.2
2012	2.9
2013	2.7
2014	2.5
2015	2.3