Year	Per 1000 Births
1970	21.6
1971	20.5
1972	19.6
1973	18.7
1974	17.9
1975	17.1
1976	16.3
1977	15.5
1978	14.8
1979	14.1
1980	13.4
1981	12.8
1982	12.3
1983	11.7
1984	11.1
1985	10.6
1986	10.1
1987	9.6
1988	9.1
1989	8.7
1990	8.3
1991	7.9
1992	7.5
1993	7.2
1994	6.8
1995	6.5
1996	6.2
1997	5.9
1998	5.6
1999	5.4
2000	5.1
2001	4.9
2002	4.6
2003	4.4
2004	4.2
2005	4
2006	3.8
2007	3.6
2008	3.4
2009	3.3
2010	3.1
2011	3
2012	2.8
2013	2.7
2014	2.6
2015	2.4