Year	Per 1000 Births
1970	19.3
1971	18
1972	16.8
1973	15.7
1974	14.7
1975	13.8
1976	13
1977	12.3
1978	11.6
1979	11
1980	10.5
1981	10
1982	9.6
1983	9.1
1984	8.7
1985	8.4
1986	8
1987	7.6
1988	7.3
1989	7
1990	6.7
1991	6.3
1992	6
1993	5.8
1994	5.6
1995	5.4
1996	5.1
1997	4.9
1998	4.7
1999	4.5
2000	4.3
2001	4.1
2002	4
2003	3.8
2004	3.7
2005	3.5
2006	3.4
2007	3.2
2008	3.1
2009	3
2010	2.8
2011	2.7
2012	2.6
2013	2.5
2014	2.4
2015	2.3