Year	Per 1000 Births
1970	25.7
1971	25.3
1972	24.8
1973	24.4
1974	24
1975	23.5
1976	23.1
1977	22.7
1978	22.4
1979	22
1980	21.6
1981	21.2
1982	20.9
1983	20.5
1984	20.2
1985	19.7
1986	19.4
1987	19.2
1988	18.9
1989	18.6
1990	18.3
1991	18
1992	17.8
1993	17.6
1994	17.3
1995	16.9
1996	16.5
1997	16.1
1998	15.8
1999	15.4
2000	15.1
2001	14.7
2002	14.4
2003	14
2004	13.7
2005	13.3
2006	13
2007	12.7
2008	12.5
2009	12.2
2010	11.9
2011	11.6
2012	11.3
2013	11
2014	10.8
2015	10.5