Year	% of children under 5
1990	42.7
1991	41.5
1992	40.3
1993	39.3
1994	38.3
1995	37.4
1996	36.6
1997	35.9
1998	35.3
1999	34.6
2000	34.1
2001	33.9
2002	33.7
2003	33.5
2004	33.4
2005	33.2
2006	33
2007	32.8
2008	32.5
2009	32.2
2010	32
2011	31.9
2012	31.7
2013	31.6
2014	31.7
2015	31.8
2016	32.1