Year	constant 2011 PPP $
1991	28224.16796875
1992	20022.884765625
1993	13821.6513671875
1994	14077.478515625
1995	14849.23046875
1996	15175.4541015625
1997	16511.65234375
1998	17054.90625
1999	15026.76953125
2000	16201.83984375
2001	17207.25390625
2002	18801.287109375
2003	20069.341796875
2004	22917.33984375
2005	25026.95703125
2006	26368.294921875
2007	26990.787109375
2008	27408.119140625
2009	28156.9765625
2010	30143.51953125
2011	32117.5
2012	32035.91015625
2013	31652.640625
2014	29855.4921875
2015	29920.5859375
2016	28829.8203125
2017	28500.73046875
2018	29481.35546875
2019	30569.681640625