Year	constant 2011 PPP $
1991	6384.11279296875
1992	5651.755859375
1993	5586.5048828125
1994	5958.76513671875
1995	5856.70703125
1996	6375.56787109375
1997	6452.22216796875
1998	6545.134765625
1999	6432.60693359375
2000	6031.7109375
2001	5942.1630859375
2002	5275.26220703125
2003	4262.27978515625
2004	3904.91088867188
2005	3624.65698242188
2006	3430.81005859375
2007	3249.85302734375
2008	2634.40698242188
2009	2912.63403320313
2010	3217.48901367188
2011	3640.15209960938
2012	4091.01708984375
2013	4213.1337890625
2014	4191.62109375
2015	4152.22509765625
2016	4060.82788085938
2017	4075.27294921875
2018	3992.9970703125
2019	3891.74291992188