Year	per 1,000 live births
1985	9.7
1986	9.3
1987	8.9
1988	8.5
1989	8.1
1990	7.8
1991	7.4
1992	7.1
1993	6.8
1994	6.5
1995	6.2
1996	6
1997	5.8
1998	5.5
1999	5.3
2000	5.2
2001	5
2002	4.8
2003	4.7
2004	4.6
2005	4.5
2006	4.4
2007	4.3
2008	4.2
2009	4.1
2010	4
2011	3.9
2012	3.8
2013	3.7
2014	3.6
2015	3.5
2016	3.4
2017	3.3
2018	3.2
2019	3.1
2020	3
2021	2.9
2022	2.8