Year	% of children under 5
1990	36.4
1991	34.6
1992	32.7
1993	31.1
1994	29.7
1995	28.3
1996	27.1
1997	26
1998	25
1999	24.2
2000	23.5
2001	23
2002	22.5
2003	22.2
2004	21.9
2005	21.7
2006	21.6
2007	21.5
2008	21.6
2009	21.7
2010	22
2011	22.3
2012	22.7
2013	23.1
2014	23.7
2015	24.3
2016	25.1