Year	constant 2011 PPP $
1991	28787.56640625
1992	29205.470703125
1993	29616.91796875
1994	30535.732421875
1995	31552.935546875
1996	32455.263671875
1997	34009.234375
1998	32837.22265625
1999	34641.47265625
2000	33648.3359375
2001	33618.59765625
2002	35601.2890625
2003	37217.3515625
2004	35946.05859375
2005	35491.2265625
2006	36205.78515625
2007	37848.66015625
2008	39049.078125
2009	35409.11328125
2010	40198.83984375
2011	38884.16796875
2012	37678.890625
2013	39434.47265625
2014	40057.21484375
2015	38286.41796875
2016	39025.140625
2017	38859.9921875
2018	39656.51953125
2019	40666.953125