Year	per 1,000 live births
1971	38.8
1972	37.8
1973	36.9
1974	35.8
1975	34.3
1976	32.3
1977	29.8
1978	27
1979	24.3
1980	22
1981	19.9
1982	18
1983	16.2
1984	14.6
1985	13.2
1986	12.1
1987	11.5
1988	11.1
1989	11
1990	10.9
1991	10.7
1992	10.3
1993	9.8
1994	9.2
1995	8.7
1996	8.1
1997	7.5
1998	7
1999	6.5
2000	6
2001	5.6
2002	5.2
2003	4.8
2004	4.5
2005	4.2
2006	3.9
2007	3.6
2008	3.4
2009	3.2
2010	3
2011	2.8
2012	2.7
2013	2.6
2014	2.6
2015	2.5
2016	2.6
2017	2.6
2018	2.7
2019	2.7
2020	2.8
2021	2.9
2022	2.9