Year	Purchasing power parity; 2011 international dollar (Units)
1998	1139.40
1999	1219.89
2000	1356.45
2001	1511.81
2002	1676.15
2003	1881.75
2004	2126.68
2005	2400.49
2006	2702.73
2007	3020.91
2008	3227.34
2009	3344.92
2010	3493.92
2011	3655.56
2012	3859.72
2013	4128.49
2014	4428.77
2015	4720.59
2016	4924.96
2017	5197.97
2018	5526.03
2019	5861.60
2020	6206.06
2021	6581.43
2022	6990.73
2023	7432.79
2024	7907.34