Year	$ 2017 PPP (%)
1994	17.88
1996	13.39
1998	12.41
2000	14.96
2002	9.09
2004	7.06
2006	4.71
2007	2.84
2008	2.4
2009	2.05
2010	1.67
2011	1.13
2012	1.16
2013	0.86
2014	0.45
2015	0.31
2016	0.36
2017	0.23
2018	0.32
2019	0.22
2020	0.22
2021	0.18