Every two years modeled estimate, % of children under 5 2000 8.8 2001 9.1 2002 9.4 2003 9.7 2004 9.7 2005 9.7 2006 9.7 2007 9.6 2008 9.4 2009 9.2 2010 8.9 2011 8.5 2012 8 2013 7.6 2014 7.1 2015 6.7 2016 6.3 2017 5.9 2018 5.6 2019 5.4 2020 5.3 2021 5.2 2022 5.3