Every two years	modeled estimate, % of children under 5
2000	9.4
2001	9
2002	8.7
2003	8.4
2004	8.1
2005	7.8
2006	7.5
2007	7.3
2008	7.2
2009	7.1
2010	7.1
2011	7
2012	7.1
2013	7.2
2014	7.5
2015	7.7
2016	7.9
2017	8.2
2018	8.3
2019	8.6
2020	8.9
2021	9.2
2022	9.5