Every two years	modeled estimate, % of children under 5
2000	1.9
2001	2
2002	2.1
2003	2.1
2004	2.2
2005	2.1
2006	2.1
2007	2.1
2008	2
2009	2
2010	2.1
2011	2.1
2012	2.2
2013	2.2
2014	2.3
2015	2.5
2016	2.6
2017	2.8
2018	2.9
2019	3.1
2020	3.2
2021	3.4
2022	3.6