Every two years modeled estimate, % of children under 5 2000 34.9 2001 35 2002 35.2 2003 35.4 2004 35.7 2005 36.1 2006 36.4 2007 36.4 2008 36.2 2009 35.8 2010 35.2 2011 34.5 2012 33.9 2013 33.5 2014 33.1 2015 32.9 2016 32.7 2017 32.5 2018 32.3 2019 31.9 2020 31.4 2021 30.9 2022 30.4