Year	constant 2010 US$
1990	31600401323.286
1991	34278135403.4514
1992	34963828087.8877
1993	34805058732.9187
1994	35311986431.7151
1995	35918523696.5403
1996	36328697950.6477
1997	37124544606.4215
1998	38111903038.5722
1999	40297733161.2034
2000	39768493148.4771
2001	38516514709.9633
2002	36871579535.2736
2003	35452458730.3782
2004	39697768882.5122
2005	37844501740.8509
2006	37620938892.6322
2007	37682921957.1857
2008	38119717142.8642
2009	37499621612.4377
2010	37635772446.5425
2011	38355199811.1894
2012	37361881468.9854
2013	37882910050.0828
2014	37002962441.3357
2015	38701404364.0588
2016	38779015637.1964
2017	37273277472.8608
2018	37594053076.1699