Year % of children under 5 2001 2.5 2002 2.6 2003 2.8 2004 2.9 2005 2.8 2006 2.4 2007 3.1 2008 2.7 2009 1.9 2010 1.9 2011 2.5 2012 2 2013 3.5 2014 3.6 2015 3.1 2016 3.8 2017 4.5 2018 4.2 2019 3.6 2020 3 2021 3.1