Every two years modeled estimate, % of children under 5 2000 4.7 2001 5 2002 5.2 2003 5.4 2004 5.5 2005 5.7 2006 5.8 2007 5.9 2008 5.9 2009 6 2010 6.1 2011 6.1 2012 6.2 2013 6.3 2014 6.3 2015 6.3 2016 6.3 2017 6.3 2018 6.2 2019 6.1 2020 6 2021 5.8 2022 5.7