Every two years	modeled estimate, % of children under 5
2000	50
2001	49.5
2002	49.1
2003	48.7
2004	48.3
2005	47.9
2006	47.4
2007	46.8
2008	46.1
2009	45.2
2010	44
2011	42.8
2012	41.6
2013	40.4
2014	39.3
2015	38.3
2016	37.3
2017	36.3
2018	35.4
2019	34.4
2020	33.5
2021	32.5
2022	31.7