Every two years modeled estimate, % of children under 5 2000 57 2001 55.8 2002 54.7 2003 53.6 2004 52.5 2005 51.3 2006 50.2 2007 48.9 2008 47.6 2009 46.1 2010 44.7 2011 43.3 2012 42.1 2013 41.1 2014 40.3 2015 39.5 2016 38.8 2017 38.1 2018 37.4 2019 36.6 2020 35.8 2021 35.1 2022 34.4