Every two years	modeled estimate, % of children under 5
2000	2.7
2001	2.9
2002	3.1
2003	3.2
2004	3.2
2005	3.2
2006	3.2
2007	3.1
2008	3
2009	3
2010	3
2011	3
2012	3
2013	3
2014	3.1
2015	3.2
2016	3.3
2017	3.4
2018	3.5
2019	3.6
2020	3.7
2021	3.8
2022	3.9