Every two years modeled estimate, % of children under 5 2000 1.4 2001 1.6 2002 1.7 2003 1.7 2004 1.6 2005 1.5 2006 1.3 2007 1.2 2008 1 2009 1 2010 1 2011 1 2012 1.1 2013 1.2 2014 1.3 2015 1.4 2016 1.5 2017 1.7 2018 1.8 2019 2 2020 2.2 2021 2.4 2022 2.7