Year	2017 PPP (% of population)
2004	0.1
2005	0.7
2006	0.1
2007	0.1
2008	0
2009	0.1
2010	0.1
2011	0.1
2012	0.3
2013	0.2
2014	0.7
2015	0.6
2016	1.3
2017	0.6
2018	0.2
2019	0.3
2020	0.4
2021	0.4