Every two years modeled estimate, % of children under 5 2000 33 2001 33.4 2002 33.7 2003 33.9 2004 34 2005 33.9 2006 33.7 2007 33.2 2008 32.4 2009 31.3 2010 30.1 2011 28.9 2012 27.6 2013 26.4 2014 25.3 2015 24.2 2016 23.2 2017 22.2 2018 21.2 2019 20.3 2020 19.4 2021 18.7 2022 18