Year	constant 2011 PPP $
1991	2843.74389648438
1992	2734.63891601563
1993	3152.52709960938
1994	3891.08911132813
1995	4045.9951171875
1996	4336.19677734375
1997	4568.40380859375
1998	4517.05810546875
1999	4362.43896484375
2000	4091.7109375
2001	4245.64111328125
2002	4199.5
2003	3905.43090820313
2004	3799.95190429688
2005	3746.916015625
2006	3612.5791015625
2007	3573.54907226563
2008	3151.30297851563
2009	3241.44409179688
2010	3258.22607421875
2011	3478.96899414063
2012	3658.05908203125
2013	3702.05810546875
2014	3808.1220703125
2015	3905.85498046875
2016	3943.72900390625
2017	3960.7119140625
2018	3992.68090820313
2019	4015.32397460938