Year	constant 2011 international $
1990	2217.82671878396
1991	2373.15584730468
1992	2639.98897333277
1993	3049.3820434669
1994	3156.21267354544
1995	2980.24296727789
1996	3133.88231928028
1997	2938.32141645497
1998	2759.12403662908
1999	2744.2444977444
2000	2615.64154870527
2001	2556.91819188948
2002	2500.95274347084
2003	2503.85597545632
2004	2519.01921591578
2005	2620.83095201502
2006	2619.6604301608
2007	2841.29852707864
2008	2764.84191866145
2009	2883.33106131189
2010	3103.27537139524
2011	3069.74205973674
2012	3145.58542214335
2013	3200.06308753914
2014	3559.69646007519
2015	3820.44463244323
2016	3898.23846490705
2017	3880.65000458739
2018	3821.03570814958