Every two years modeled estimate, % of children under 5 2000 6.1 2001 6.5 2002 6.8 2003 7 2004 7 2005 6.9 2006 6.8 2007 6.6 2008 6.4 2009 6.4 2010 6.3 2011 6.2 2012 6.2 2013 6.1 2014 6 2015 6 2016 5.9 2017 5.9 2018 5.8 2019 5.7 2020 5.6 2021 5.5 2022 5.4