Year	% of children under 5
1990	43.4
1991	41.9
1992	40.5
1993	38.9
1994	37.4
1995	35.9
1996	34.3
1997	32.8
1998	31.3
1999	30
2000	28.8
2001	27.9
2002	27.2
2003	26.5
2004	26
2005	25.8
2006	25.6
2007	25.5
2008	25.5
2009	25.8
2010	26
2011	26.6
2012	27
2013	27.7
2014	28.4
2015	29.3
2016	30.3