Year % of children under 5 1992 1.9 1998 1.6 2000 1.4 2006 3.4 2007 0.3 2008 0 2009 0.2 2010 0.1 2011 0.2 2012 2.6 2013 0.3 2014 0.5 2015 0.5 2016 1 2018 0.8 2019 1.5 2020 1.6 2021 1.1 2022 0.5