Year	$ 2017 PPP (%)
1997	12.02
1998	10.43
1999	13.98
2000	15.74
2001	16.04
2002	6.47
2003	6.21
2004	5.43
2005	6.84
2006	7.12
2007	9.33
2008	8.65
2009	9.5
2010	10.84
2011	10.63
2012	9.23
2013	7.49
2015	4.03
2016	4.26
2017	5.11
2018	4.38
2019	3.86
2020	3.83
2021	3.38