Every two years modeled estimate, % of children under 5 2000 25.5 2001 24.5 2002 23.7 2003 22.9 2004 22.2 2005 21.6 2006 21.1 2007 20.4 2008 19.7 2009 19.1 2010 18.4 2011 17.8 2012 17.3 2013 16.9 2014 16.6 2015 16.4 2016 16.1 2017 15.9 2018 15.7 2019 15.5 2020 15.3 2021 15.1 2022 14.9