Year	% of children under 5
1990	41.5
1991	40.4
1992	39.4
1993	38.6
1994	37.8
1995	37
1996	36.4
1997	35.9
1998	35.4
1999	34.9
2000	34.5
2001	34.4
2002	34.3
2003	34.3
2004	34.2
2005	34
2006	33.8
2007	33.4
2008	33.2
2009	32.8
2010	32.4
2011	32.1
2012	31.9
2013	31.7
2014	31.7
2015	31.7
2016	31.9