Year	constant 2011 international $
1990	13044405479.3203
1991	13333769908.1781
1992	13685771364.8295
1993	14397648752.3324
1994	13757990837.778
1995	14188638165.5893
1996	14564495186.7988
1997	14747599431.1855
1998	15891702242.1037
1999	16563685409.5126
2000	17118363783.2302
2001	17978771341.4025
2002	18757085585.0762
2003	19697426388.9112
2004	20610594543.1214
2005	21658061712.3206
2006	22669370837.6119
2007	24302130005.7557
2008	25376124276.9222
2009	26109653767.6401
2010	26698280125.9339
2011	26979071062.0774
2012	27945428371.7973
2013	28689183231.0258
2014	29096288992.0974
2015	30388807236.1437
2016	31996339228.9714
2017	34649357443.0522
2018	37412590695.0721