Year	% of children under 5
1990	44.1
1991	42.4
1992	40.8
1993	39.2
1994	37.7
1995	36.3
1996	34.9
1997	33.6
1998	32.4
1999	31.5
2000	30.6
2001	29.9
2002	29.3
2003	29
2004	28.7
2005	28.5
2006	28.4
2007	28.3
2008	28.3
2009	28.4
2010	28.6
2011	28.8
2012	29.1
2013	29.4
2014	29.8
2015	30.3
2016	30.8