Year	per 1,000 live births
1980	22.5
1981	21.6
1982	20.9
1983	20.2
1984	19.6
1985	19
1986	18.6
1987	18.3
1988	18
1989	17.8
1990	17.7
1991	17.5
1992	17.3
1993	17
1994	16.4
1995	15.7
1996	14.8
1997	13.8
1998	12.9
1999	11.9
2000	11
2001	10.1
2002	9.3
2003	8.5
2004	7.8
2005	7.1
2006	6.5
2007	6
2008	5.5
2009	5
2010	4.6
2011	4.2
2012	3.9
2013	3.6
2014	3.4
2015	3.1
2016	2.9
2017	2.7
2018	2.5
2019	2.3
2020	2.1
2021	2
2022	1.9