Year	per 1,000 live births
1981	16.5
1982	15.7
1983	14.9
1984	14.2
1985	13.4
1986	12.6
1987	11.8
1988	11.1
1989	10.3
1990	9.7
1991	9.6
1992	8.6
1993	8.2
1994	7.9
1995	7.6
1996	7.3
1997	7.1
1998	6.9
1999	6.7
2000	6.5
2001	6.2
2002	6
2003	5.8
2004	5.5
2005	5.3
2006	5.1
2007	4.9
2008	4.6
2009	4.5
2010	4.3
2011	4.1
2012	4
2013	3.9
2014	3.9
2015	3.8
2016	3.8
2017	3.7
2018	3.7
2019	3.6
2020	3.6
2021	3.6
2022	3.5