Every two years	modeled estimate, % of children under 5
2000	43.9
2001	43.8
2002	43.6
2003	43
2004	42.5
2005	41.8
2006	40.9
2007	40
2008	38.7
2009	37.2
2010	35.5
2011	33.7
2012	31.9
2013	30.2
2014	28.6
2015	27.2
2016	25.8
2017	24.4
2018	23
2019	21.7
2020	20.6
2021	19.6
2022	18.8