Year	% of children under 5
1990	62.1
1991	60.6
1992	59.1
1993	57.6
1994	56.1
1995	54.5
1996	52.7
1997	51.2
1998	49.6
1999	48.1
2000	46.8
2001	45.7
2002	44.8
2003	44.1
2004	43.6
2005	43.5
2006	43.3
2007	43.5
2008	43.8
2009	44.4
2010	45.3
2011	46.2
2012	47.4
2013	48.6
2014	50
2015	51.5
2016	52.9