Year	per 1,000 live births
1977	28
1978	27.4
1979	26.8
1980	26.2
1981	25.6
1982	25.2
1983	24.8
1984	24.5
1985	24.2
1986	24
1987	23.7
1988	24.2
1989	23.1
1990	22.7
1991	22.3
1992	21.8
1993	21.2
1994	20.5
1995	19.9
1996	19.2
1997	18.4
1998	17.5
1999	16.7
2000	15.9
2001	15.1
2002	14.4
2003	13.7
2004	13.1
2005	12.4
2006	11.8
2007	11.3
2008	10.7
2009	10.2
2010	9.7
2011	9.2
2012	8.8
2013	8.4
2014	7.9
2015	7.6
2016	7.2
2017	6.8
2018	6.5
2019	6.2
2020	5.9
2021	5.6
2022	5.3