Year	% of children under 5
1990	44.3
1991	43.3
1992	42.3
1993	41.5
1994	40.9
1995	40.3
1996	39.8
1997	39.4
1998	39.1
1999	38.8
2000	38.7
2001	38.6
2002	38.5
2003	38.7
2004	38.7
2005	38.7
2006	38.6
2007	38.5
2008	38.3
2009	38.1
2010	37.9
2011	37.8
2012	37.6
2013	37.6
2014	37.6
2015	37.7
2016	37.9