Year	% of children under 5
1989	3.1
1991	3.6
1992	2.8
1993	5.1
1994	2.4
1995	5.7
1996	2.5
1997	1.5
1998	1.6
1999	2.1
2000	3.3
2001	3.4
2002	1.9
2004	4.7
2006	3.4
2007	2
2008	2.7
2010	4
2012	2.9
2014	3.7
2016	2.7
2018	3.1