Year	World Bank (% of population)
2008	3.6
2009	2.9
2010	1.8
2011	1.5
2012	1.8
2013	2.2
2014	2.3
2015	1.4
2016	0.9
2017	0.9
2018	0.9
2019	0.9
2020	1.2
2021	0.9