Every two years modeled estimate, % of children under 5 2000 38.5 2001 38.5 2002 38.4 2003 38.1 2004 37.7 2005 37.3 2006 36.7 2007 35.8 2008 34.6 2009 33.3 2010 31.7 2011 30.1 2012 28.6 2013 27.2 2014 26 2015 24.9 2016 23.9 2017 23 2018 22 2019 21.1 2020 20.1 2021 19.2 2022 18.4