Year % of children under 5 2001 0.2 2002 0.5 2003 0.7 2004 0.9 2005 1.3 2006 0.7 2007 0.7 2008 0.5 2009 0.4 2010 0.4 2011 0.4 2012 0.6 2013 0.6 2014 0.5 2015 0.7 2016 0.4 2017 0.7 2018 0.9 2019 0.4 2020 0.7 2021 0.8