Year	Per 1000 Births
1970	22.9
1971	21.9
1972	21
1973	20.1
1974	19.2
1975	18.4
1976	17.7
1977	16.9
1978	16.2
1979	15.5
1980	14.8
1981	14.2
1982	13.5
1983	12.9
1984	12.4
1985	11.9
1986	11.4
1987	10.9
1988	10.4
1989	9.9
1990	9.5
1991	9.1
1992	8.7
1993	8.3
1994	7.9
1995	7.6
1996	7.2
1997	6.9
1998	6.6
1999	6.3
2000	6
2001	5.7
2002	5.5
2003	5.2
2004	5
2005	4.8
2006	4.6
2007	4.4
2008	4.2
2009	4
2010	3.8
2011	3.7
2012	3.5
2013	3.4
2014	3.2
2015	3.1