Year	% of children under 5
1991	2
1996	1.7
2000	1.2
2005	1.1
2007	0.9
2009	0.7
2010	0.9
2011	0.5
2012	0.8
2013	0.6
2014	0.7
2015	0.8
2016	0.7
2017	0.6
2018	0.5
2019	0.5
2020	0.4
2021	0.4
2022	0.5