Year	constant 2011 international $
1990	30781.0073225166
1991	31342.1510662684
1992	31687.5532940259
1993	31563.9665269184
1994	32719.7355707661
1995	33350.2840892499
1996	33854.0585004759
1997	35060.5635330061
1998	35677.6488785139
1999	36822.1889220702
2000	38152.4911710406
2001	38062.3920095792
2002	38510.0642943502
2003	38714.3697455633
2004	39734.8872780337
2005	40280.6006491466
2006	41091.1926710574
2007	42179.0420707262
2008	42588.8736580616
2009	40409.6339439087
2010	42384.8657119488
2011	41700.4377493005
2012	42125.0922678107
2013	41688.1578933478
2014	41631.9206274355
2015	41597.5042595215
2016	42260.1862275324
2017	43299.7390424637