Year	Per 1000 Births
1970	57.5
1971	52.6
1972	47.9
1973	43.7
1974	39.8
1975	36.3
1976	33.4
1977	31
1978	29.3
1979	27.9
1980	26.7
1981	25.8
1982	24.9
1983	24
1984	23.2
1985	22.2
1986	21.3
1987	20.4
1988	19.7
1989	19.1
1990	18.7
1991	18.3
1992	18
1993	17.7
1994	17.3
1995	16.9
1996	16.5
1997	16.1
1998	15.8
1999	15.5
2000	15.2
2001	15.1
2002	14.9
2003	14.9
2004	14.9
2005	14.8
2006	14.8
2007	14.6
2008	14.5
2009	14.3
2010	14.1
2011	13.9
2012	13.6
2013	13.3
2014	13
2015	12.7