Year	Per 1000 Births
1978	25.6
1979	23.4
1980	21.2
1981	19.3
1982	17.6
1983	15.9
1984	14.6
1985	13.3
1986	12.5
1987	11.9
1988	11.5
1989	11.1
1990	11
1991	10.8
1992	10.5
1993	10.1
1994	9.6
1995	9
1996	8.4
1997	7.9
1998	7.4
1999	6.9
2000	6.5
2001	6.2
2002	5.8
2003	5.5
2004	5.2
2005	4.9
2006	4.6
2007	4.2
2008	3.9
2009	3.6
2010	3.4
2011	3.1