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