Every two years modeled estimate, % of children under 5 2000 22.3 2001 21.5 2002 20.7 2003 19.8 2004 18.9 2005 18.1 2006 17.2 2007 16.3 2008 15.4 2009 14.4 2010 13.6 2011 12.8 2012 12.1 2013 11.6 2014 11.1 2015 10.7 2016 10.4 2017 10 2018 9.7 2019 9.4 2020 9.1 2021 8.8 2022 8.6