Year	constant 2011 international $
1990	3121.20909036004
1991	3104.33713048973
1992	3130.75246466643
1993	3045.83054150235
1994	3004.55307905544
1995	3003.04574848322
1996	3058.62607626581
1997	3040.78877038394
1998	3043.684538415
1999	3039.14924395503
2000	3081.69519512622
2001	3119.87283894052
2002	3259.16240267935
2003	3344.47457085568
2004	3521.11374163699
2005	3670.65524253731
2006	3804.27636457057
2007	3930.18967348442
2008	3991.13682831894
2009	4098.62019488003
2010	4218.78999894213
2011	4313.03729026338
2012	4401.57044792044
2013	4544.76299328501
2014	4689.33775864531
2015	4769.75293633488
2016	4770.05579658417
2017	4817.45246125525
2018	4896.55672846887