Every two years	modeled estimate, % of children under 5
2000	4.4
2001	4.3
2002	4.3
2003	4.2
2004	4.2
2005	4.1
2006	4.1
2007	4
2008	3.8
2009	3.7
2010	3.6
2011	3.5
2012	3.4
2013	3.3
2014	3.2
2015	3.2
2016	3.2
2017	3.1
2018	3.1
2019	3.1
2020	3
2021	3
2022	3