Year	Per 1000 Births
1980	50
1981	44.4
1982	45
1983	45.4
1984	45.7
1985	45.6
1986	45.4
1987	45
1988	44.4
1989	43.9
1990	43.4
1991	43.1
1992	43
1993	43
1994	43.1
1995	43.3
1996	43.5
1997	43.6
1998	43.3
1999	42.9
2000	42.2
2001	41.5
2002	40.6
2003	39.6
2004	38.6
2005	37.7
2006	36.6
2007	35.7
2008	34.7
2009	33.8
2010	32.9
2011	32
2012	31.1
2013	30.2
2014	29.4
2015	28.6