Year	$ 2017 PPP (%)
2002	0.36
2003	0.15
2004	0.1
2005	0
2006	0.02
2007	0
2008	0
2009	0
2010	0.03
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0
2020	0