Year	Per 1000 Births
1970	18.9
1971	18.1
1972	17.3
1973	16.5
1974	15.8
1975	15.2
1976	14.6
1977	14
1978	13.5
1979	13
1980	12.5
1981	12
1982	11.5
1983	11.1
1984	10.6
1985	10.2
1986	9.8
1987	9.4
1988	9
1989	8.6
1990	8.3
1991	8
1992	7.6
1993	7.3
1994	7
1995	6.7
1996	6.5
1997	6.2
1998	5.9
1999	5.7
2000	5.4
2001	5.2
2002	5
2003	4.8
2004	4.6
2005	4.4
2006	4.2
2007	4.1
2008	3.9
2009	3.7
2010	3.6
2011	3.4
2012	3.3
2013	3.2
2014	3
2015	2.9