Year % of children under 5 1993 5.9 1999 5.6 2009 2.7 2010 5.9 2011 2.2 2012 1.8 2013 1.6 2014 1.7 2015 2.1 2016 1.4 2017 1.9 2018 1.7 2019 1 2020 0.9 2021 2.2