Year	% of children under 5
1990	30.3
1991	28.7
1992	27.4
1993	26
1994	24.8
1995	23.8
1996	22.9
1997	22.1
1998	21.4
1999	20.9
2000	20.4
2001	20.1
2002	19.8
2003	19.5
2004	19.4
2005	19.2
2006	19
2007	19
2008	18.9
2009	18.9
2010	19.1
2011	19.3
2012	19.7
2013	20.1
2014	20.7
2015	21.4
2016	22.2