Year	per 1,000 live births
1979	18
1980	17.8
1981	17.7
1982	17.4
1983	16.9
1984	16.1
1985	15.1
1986	14.1
1987	13.4
1988	13.3
1989	13.8
1990	14.8
1991	15.9
1992	16.9
1993	17.6
1994	17.8
1995	17.6
1996	17
1997	16.1
1998	15
1999	13.9
2000	12.8
2001	12.1
2002	11.4
2003	10.8
2004	10.2
2005	9.5
2006	9
2007	8.5
2008	8.1
2009	7.6
2010	7.1
2011	6.6
2012	6.1
2013	5.6
2014	5.1
2015	4.7
2016	4.4
2017	4.1
2018	3.9
2019	3.6
2020	3.4
2021	3.2
2022	3