Year	Per 1000 Births
1970	22
1971	21.3
1972	20.6
1973	19.9
1974	19.3
1975	18.6
1976	17.9
1977	17.3
1978	16.7
1979	16.2
1980	15.6
1981	15.1
1982	14.6
1983	14.1
1984	13.6
1985	13.2
1986	12.8
1987	12.4
1988	12
1989	11.7
1990	11.3
1991	10.9
1992	10.6
1993	10.3
1994	9.9
1995	9.6
1996	9.3
1997	9
1998	8.8
1999	8.5
2000	8.3
2001	8
2002	7.8
2003	7.5
2004	7.3
2005	7.1
2006	6.9
2007	6.7
2008	6.4
2009	6.2
2010	6.1
2011	5.9
2012	5.7
2013	5.5
2014	5.3
2015	5.2