Year	% of children under 5
1990	28.1
1991	26
1992	24
1993	22.1
1994	20.4
1995	19
1996	17.8
1997	16.7
1998	15.9
1999	15.2
2000	14.6
2001	14.2
2002	13.9
2003	13.8
2004	13.8
2005	13.8
2006	13.9
2007	14
2008	14.3
2009	14.7
2010	15.2
2011	15.9
2012	16.7
2013	17.6
2014	18.7
2015	20
2016	21.4