Year	% of children under 5
1990	39.8
1991	38.6
1992	37.6
1993	36.7
1994	36
1995	35.4
1996	34.8
1997	34.4
1998	33.9
1999	33.7
2000	33.5
2001	33.4
2002	33.4
2003	33.3
2004	33.4
2005	33.3
2006	33.2
2007	32.9
2008	32.7
2009	32.4
2010	32.2
2011	32.1
2012	32
2013	31.9
2014	31.9
2015	32.1
2016	32.3