Year	% of children under 5
1990	35.1
1991	34.1
1992	33.2
1993	32.5
1994	31.9
1995	31.5
1996	31
1997	30.7
1998	30.3
1999	30.1
2000	30
2001	29.9
2002	29.9
2003	30.1
2004	30
2005	30.1
2006	30.1
2007	30
2008	29.8
2009	29.6
2010	29.4
2011	29.2
2012	29
2013	29
2014	29.1
2015	29.3
2016	29.5