Year	Per 1000 Births
1960	33
1970	25
1980	20
1981	23.2
1982	22.2
1983	21.3
1984	20.3
1985	19.4
1986	18.6
1987	17.7
1988	17
1989	16.2
1990	15.6
1991	15
1992	14.3
1993	13.7
1994	13.1
1995	12.6
1996	12
1997	11.6
1998	11
1999	10.6
2000	10.2
2001	9.8
2002	9.5
2003	9.1
2004	8.8
2005	8.4
2006	8.2
2007	7.8
2008	7.6
2009	7.3
2010	7
2011	6.8
2012	6.5
2013	6.3
2014	6.1
2015	5.8