Year	Per 1000 Births
1989	6.6
1990	6.4
1991	6
1992	5.8
1993	5.5
1994	5.3
1995	5.1
1996	4.9
1997	4.7
1998	4.5
1999	4.3
2000	4.2
2001	4.1
2002	3.9
2003	3.8
2004	3.7
2005	3.7
2006	3.6
2007	3.5
2008	3.4
2009	3.3
2010	3.2
2011	3.2
2012	3.1
2013	3
2014	2.9
2015	2.8