Year	2017 PPP (%)
1975	0.6
1981	0.5
1987	0.3
1992	0.4
1995	0.6
2000	0.2
2001	0.3
2002	0.1
2003	0.5
2004	0.6
2005	1.2
2006	0.5
2007	0.6
2008	0.7
2009	0.7
2010	0.8
2011	0.8
2012	0.6
2013	0.8
2014	0.7
2015	0.7
2016	0.5
2017	0.3
2018	0.9
2019	0.4
2020	0.5
2021	0.9