Every two years modeled estimate, % of children under 5 2000 12.1 2001 12.2 2002 11.9 2003 11.4 2004 10.7 2005 9.7 2006 8.8 2007 7.8 2008 7 2009 6.3 2010 5.7 2011 5.3 2012 4.9 2013 4.6 2014 4.4 2015 4.2 2016 4 2017 3.9 2018 3.8 2019 3.8 2020 3.8 2021 3.8 2022 3.9