Year	% of children under 5
1990	39.4
1991	37.9
1992	36.7
1993	35.5
1994	34.4
1995	33.5
1996	32.5
1997	31.8
1998	31.2
1999	30.6
2000	30.1
2001	29.7
2002	29.5
2003	29.3
2004	29.1
2005	28.9
2006	28.7
2007	28.5
2008	28.1
2009	27.9
2010	27.7
2011	27.5
2012	27.3
2013	27.2
2014	27.3
2015	27.4
2016	27.7