Every two years modeled estimate, % of children under 5 2000 43.1 2001 43.3 2002 43.4 2003 43.5 2004 43.5 2005 43.6 2006 43.5 2007 43.3 2008 42.8 2009 42.3 2010 41.7 2011 41.1 2012 40.6 2013 40.6 2014 40.8 2015 40.9 2016 40.9 2017 40.9 2018 40.8 2019 40.5 2020 40.3 2021 40 2022 39.8