Year	2017 PPP (%)
1997	3.9
1998	7.6
1999	10.6
2000	9.2
2001	6.5
2002	3
2003	1
2004	1.4
2005	2.6
2006	0.5
2007	0.2
2008	0.2
2009	0.1
2010	0.1
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0
2017	0
2018	0
2019	0
2021	0