Year	per 1,000 live births
1971	31.7
1972	31
1973	30.2
1974	29.2
1975	27.8
1976	25.9
1977	23.7
1978	21.4
1979	19.3
1980	17.4
1981	15.7
1982	14.3
1983	12.9
1984	11.7
1985	10.6
1986	9.8
1987	9.3
1988	9.1
1989	9
1990	8.9
1991	8.8
1992	8.5
1993	8.2
1994	7.7
1995	7.3
1996	6.8
1997	6.4
1998	6
1999	5.6
2000	5.2
2001	4.9
2002	4.5
2003	4.2
2004	3.9
2005	3.7
2006	3.4
2007	3.2
2008	2.9
2009	2.7
2010	2.6
2011	2.4
2012	2.3
2013	2.3
2014	2.2
2015	2.2
2016	2.2
2017	2.2
2018	2.3
2019	2.4
2020	2.4
2021	2.5
2022	2.5