Every two years modeled estimate, % of children under 5 2000 12.7 2001 12.2 2002 11.8 2003 11.3 2004 10.8 2005 10.2 2006 9.7 2007 9.2 2008 8.6 2009 8.1 2010 7.6 2011 7.2 2012 6.8 2013 6.4 2014 6.1 2015 5.8 2016 5.5 2017 5.2 2018 4.9 2019 4.6 2020 4.4 2021 4.1 2022 3.9