Year	$ 2017 PPP (%)
1993	0.12
1998	0.02
1999	0.03
2000	0.02
2001	0.03
2002	0.04
2003	0.03
2004	0.05
2005	0.07
2006	0.01
2007	0
2008	0
2009	0
2010	0
2011	0
2012	0
2013	0
2014	0.01
2015	0
2016	0
2017	0
2018	0
2019	0
2020	0
2021	0