Year	2017 PPP (%)
1996	8.7
2001	12.2
2002	9.6
2003	7.5
2004	4.9
2005	8.8
2006	1.7
2007	0.8
2008	0.6
2009	0.7
2010	0.5
2011	0.2
2012	0.1
2013	0.1
2014	0.1
2015	0.1
2016	0.2
2017	0.1
2018	0.1
2019	0.1
2020	0.1
2021	0