Year	% of children under 5
1990	35.3
1991	34.3
1992	33.5
1993	32.8
1994	32.3
1995	31.8
1996	31.3
1997	31
1998	30.6
1999	30.4
2000	30.3
2001	30.2
2002	30.2
2003	30.3
2004	30.3
2005	30.3
2006	30.2
2007	30.1
2008	29.8
2009	29.6
2010	29.4
2011	29.2
2012	29
2013	28.9
2014	29
2015	29.1
2016	29.3