Year	% of children under 5
1990	40.7
1991	39
1992	37.3
1993	35.8
1994	34.4
1995	33
1996	31.9
1997	30.9
1998	30
1999	29.3
2000	28.7
2001	28.2
2002	28
2003	27.9
2004	27.7
2005	27.7
2006	27.5
2007	27.3
2008	27
2009	26.8
2010	26.9
2011	26.9
2012	27
2013	27.2
2014	27.5
2015	28.1
2016	28.8