Year	constant 2011 PPP $
1991	38120.52734375
1992	37950.51171875
1993	37948.76953125
1994	39223.05859375
1995	36899.5546875
1996	37752.1640625
1997	38034.69921875
1998	39047.78125
1999	39340.5625
2000	40588.8046875
2001	40049.95703125
2002	39379.35546875
2003	39756.76953125
2004	39864.65625
2005	39616.62109375
2006	39997.39453125
2007	39940.53125
2008	39744.3671875
2009	37402.78125
2010	38532.91015625
2011	39001.54296875
2012	39030.82421875
2013	38902.96875
2014	39567.25
2015	39791.64453125
2016	40063.0390625
2017	40066.01953125
2018	40163.2890625
2019	40453.45703125