Year	constant 2010 US$
1990	33116441935.7794
1991	23535991679.866
1992	25489710832.1443
1993	26227645841.8965
1994	31442163674.6822
1995	38382103072.271
1996	43732279135.5229
1997	39955283861.0867
1998	38777322529.5511
1999	37675336745.5133
2000	42201458248.7924
2001	44927257733.0384
2002	45714450276.8578
2003	45633186286.7017
2004	49050305656.2774
2005	51610278428.6518
2006	56773788174.3092
2007	65002762033.1706
2008	65779168248.3997
2009	53987564305.6301
2010	56273585276.1379
2011	57276085505.2164
2012	55014778840.9933
2013	52211694788.7895
2014	56681423690.6523
2015	64029845666.4878
2016	61308444490.9874
2017	63731441362.4285
2018	67114840364.9549