Every two years modeled estimate, % of children under 5 2000 40.5 2001 40.9 2002 41.3 2003 41.5 2004 41.6 2005 41.5 2006 41.2 2007 40.6 2008 39.6 2009 38.3 2010 36.7 2011 35.1 2012 33.3 2013 31.5 2014 29.9 2015 28.4 2016 27 2017 25.8 2018 24.8 2019 23.9 2020 23.1 2021 22.4 2022 21.8