Every two years modeled estimate, % of children under 5 2000 34.8 2001 34.4 2002 34.1 2003 33.9 2004 33.7 2005 33.7 2006 33.6 2007 33.4 2008 33.2 2009 32.9 2010 32.6 2011 32.3 2012 31.9 2013 31.7 2014 31.5 2015 31.2 2016 31.1 2017 30.7 2018 30.1 2019 30.1 2020 29.7 2021 29 2022 28.8