Year	2017 PPP (% of population)
2004	0.1
2005	0.2
2006	0.2
2007	0.4
2008	0.4
2009	0.4
2010	0.5
2011	0.4
2012	0.4
2013	0.3
2014	0.7
2015	0.7
2016	1.4
2017	0.2
2018	0.2
2019	0.1
2020	0.2
2021	0.1