Year	% of children under 5
1990	45.5
1991	44.6
1992	44.2
1993	43.8
1994	43.5
1995	43.5
1996	43.1
1997	42.7
1998	42.2
1999	41.5
2000	40.9
2001	40.2
2002	39.6
2003	39
2004	38.3
2005	37.5
2006	36.2
2007	35
2008	33.6
2009	32
2010	30.7
2011	29.3
2012	27.9
2013	26.5
2014	25.4
2015	24.5
2016	23.9