Year	per 1,000 live births
1985	20
1986	19
1987	18
1988	17
1989	16
1990	15.1
1991	14.2
1992	13.4
1993	12.7
1994	12
1995	11.4
1996	10.8
1997	10.2
1998	9.7
1999	9.2
2000	8.7
2001	8.3
2002	7.9
2003	7.5
2004	7.1
2005	6.7
2006	6.4
2007	6.1
2008	5.8
2009	5.5
2010	5.2
2011	5
2012	4.7
2013	4.5
2014	4.2
2015	4
2016	3.8
2017	3.7
2018	3.5
2019	3.4
2020	3.2
2021	3.1
2022	3