Every two years modeled estimate, % of children under 5 2000 24.7 2001 23.9 2002 23.2 2003 22.5 2004 21.8 2005 21.3 2006 20.8 2007 20.3 2008 19.9 2009 19.4 2010 19 2011 18.7 2012 18.5 2013 18.5 2014 18.5 2015 18.6 2016 18.6 2017 18.5 2018 18.3 2019 18 2020 17.7 2021 17.3 2022 17