Every two years modeled estimate, % of children under 5 2000 36.6 2001 35.7 2002 34.6 2003 33.5 2004 32.3 2005 31.2 2006 30 2007 28.7 2008 27.4 2009 25.9 2010 24.4 2011 23.1 2012 22 2013 21.2 2014 20.7 2015 20.4 2016 20.1 2017 19.8 2018 19.4 2019 18.9 2020 18.4 2021 17.9 2022 17.5