Year	Per 1000 Births
1970	19.9
1971	19.3
1972	18.7
1973	18.1
1974	17.5
1975	16.9
1976	16.3
1977	15.7
1978	15.1
1979	14.6
1980	14
1981	13.4
1982	12.8
1983	12.3
1984	11.8
1985	11.4
1986	11
1987	10.5
1988	10.1
1989	9.8
1990	9.4
1991	9
1992	8.7
1993	8.3
1994	8
1995	7.7
1996	7.4
1997	7.1
1998	6.9
1999	6.6
2000	6.4
2001	6.2
2002	6
2003	5.8
2004	5.6
2005	5.4
2006	5.2
2007	5
2008	4.8
2009	4.6
2010	4.5
2011	4.3
2012	4.1
2013	4
2014	3.9
2015	3.7