Year	% of children under 5
1990	28.9
1991	27.5
1992	26.2
1993	25
1994	23.8
1995	22.7
1996	21.9
1997	21.4
1998	21
1999	20.7
2000	20.8
2001	21.1
2002	21.4
2003	21.9
2004	22.5
2005	23
2006	23.7
2007	24.3
2008	25
2009	25.6
2010	26.3
2011	26.9
2012	27.6
2013	28.3
2014	29.1
2015	29.8
2016	30.6