Every two years modeled estimate, % of children under 5 2000 43.5 2001 43.6 2002 44 2003 44.8 2004 45.7 2005 46.8 2006 48 2007 49 2008 50 2009 50.7 2010 51.2 2011 51.4 2012 51.6 2013 51.9 2014 52 2015 52.2 2016 52.3 2017 52.4 2018 52.1 2019 51.8 2020 51.3 2021 50.8 2022 50.2