Year	% of children under 5
1989	3.2
1991	5.5
1992	2.7
1993	4.4
1994	3
1995	4.8
1996	2.5
1997	2.2
1998	2.6
1999	2.4
2000	3
2001	3.2
2002	2.4
2004	4.5
2006	3.7
2007	2.7
2008	2.5
2010	4.8
2012	3
2014	3.6
2016	3.3
2018	3.2