Year	Per 1000 Births
1970	56.5
1971	54.1
1972	52.2
1973	50.3
1974	48.4
1975	46.5
1976	44.9
1977	43.4
1978	42
1979	40.7
1980	39.5
1981	38.2
1982	37
1983	36
1984	34.9
1985	34
1986	33.3
1987	32.6
1988	31.9
1989	31
1990	30.2
1991	29.4
1992	28.6
1993	27.9
1994	27.2
1995	26.5
1996	25.8
1997	25.1
1998	24.5
1999	23.9
2000	23.3
2001	22.7
2002	22
2003	21.4
2004	20.8
2005	20.2
2006	19.6
2007	19.1
2008	18.6
2009	18.1
2010	17.6
2011	17
2012	16.6
2013	16.1
2014	15.7
2015	15.2