Year	2017 PPP (% of population)
1994	1
1995	1
1996	0.5
1997	0.7
1998	1
1999	0.5
2000	0.6
2003	0.7
2004	0.4
2005	0.5
2006	0.5
2007	0.8
2008	1
2009	1
2010	0.8
2011	1
2012	1.1
2013	0.7
2014	0.7
2015	1
2016	1.3
2017	0.7
2018	1.2
2019	0.8
2020	1
2021	1.1