Every two years modeled estimate, % of children under 5 2000 8.5 2001 8.5 2002 8.4 2003 8.3 2004 8.1 2005 8 2006 7.8 2007 7.6 2008 7.4 2009 7.2 2010 7 2011 6.7 2012 6.5 2013 6.3 2014 6.1 2015 6 2016 5.8 2017 5.7 2018 5.5 2019 5.4 2020 5.2 2021 5.1 2022 5