Year	constant 2011 PPP $
1991	4283.59619140625
1992	4230.92919921875
1993	4230.1630859375
1994	4252.42822265625
1995	4350.38916015625
1996	4778.73095703125
1997	4995.5048828125
1998	3522.02807617188
1999	3498.9951171875
2000	3612.98388671875
2001	3602.86499023438
2002	3481.8310546875
2003	3407.01293945313
2004	3404.68896484375
2005	3445.3291015625
2006	3422.14404296875
2007	3426.73803710938
2008	3433.36303710938
2009	3462.6220703125
2010	3518.955078125
2011	3700.38793945313
2012	3530.60498046875
2013	3538.7109375
2014	3459.59594726563
2015	3566.76098632813
2016	3682.5859375
2017	3785.86108398438
2018	3828.2080078125
2019	3874.31005859375