Every two years modeled estimate, % of children under 5 2000 39.9 2001 39.9 2002 39.4 2003 38.9 2004 38.8 2005 39 2006 38.4 2007 38.8 2008 39.2 2009 39.1 2010 38.7 2011 38 2012 37 2013 36.2 2014 35.6 2015 35 2016 34.6 2017 34.2 2018 33.6 2019 32.7 2020 31.9 2021 31.2 2022 30.5