Year	per 1,000 live births
1981	7.2
1982	6.9
1983	6.8
1984	7
1985	7.2
1986	7
1987	6.5
1988	6.3
1989	6.8
1990	7.9
1991	9.4
1992	10.6
1993	10.7
1994	9.4
1995	7.7
1996	6.4
1997	5.5
1998	5.1
1999	4.7
2000	4.5
2001	4.4
2002	4.3
2003	4.3
2004	4.3
2005	4.2
2006	4
2007	3.7
2008	3.3
2009	3.1
2010	2.9
2011	2.7
2012	2.5
2013	2.4
2014	2.4
2015	2.3
2016	2.2
2017	2.2
2018	2.1
2019	2
2020	2
2021	2
2022	2