Year	constant 2011 international $
1990	3923.21020938236
1991	4130.37758434512
1992	3972.29106964544
1993	3875.44164735302
1994	4215.93996056259
1995	3926.85297272172
1996	4349.24283656085
1997	4223.34266895904
1998	4470.65254681588
1999	4462.65001028763
2000	4492.42579536115
2001	4763.14822232903
2002	4853.34712121841
2003	5081.97921484825
2004	5263.32297766095
2005	5373.03228055639
2006	5712.71711482859
2007	5845.48772304663
2008	6118.30222781462
2009	6299.67090520308
2010	6456.25842475025
2011	6703.87683123861
2012	6809.83243355352
2013	7018.23671508179
2014	7104.52548270533
2015	7324.9868229104
2016	7308.76228553007
2017	7508.79543448053