Year % of children under 5 1992 2 1998 1.2 2000 1.7 2006 3.5 2007 0.3 2008 0.1 2009 0.2 2010 0.1 2011 0.1 2012 3.1 2013 0.4 2014 0.5 2015 0.6 2016 1.1 2018 1 2019 1.4 2020 1.6 2021 1.3 2022 1.2