Every two years modeled estimate, % of children under 5 2000 44.9 2001 44 2002 43 2003 42.4 2004 41.9 2005 41.3 2006 40.7 2007 40 2008 39.1 2009 38 2010 37 2011 36 2012 35 2013 34 2014 33.1 2015 32.6 2016 31.8 2017 31 2018 30.1 2019 29.2 2020 28 2021 27.2 2022 26.6