Every two years modeled estimate, % of children under 5 2000 33.7 2001 34.3 2002 34.9 2003 35.4 2004 35.7 2005 35.8 2006 35.7 2007 35.2 2008 34.4 2009 33.4 2010 32.2 2011 30.9 2012 29.6 2013 28.4 2014 27.2 2015 26.1 2016 24.9 2017 23.7 2018 22.6 2019 21.5 2020 20.5 2021 19.5 2022 18.7