Year	constant 2010 US$
1970	2123519886.56494
1971	2342941182.75527
1972	2325633922.58627
1973	2739197188.54986
1974	3109347440.62946
1975	3654885466.35774
1976	5783121057.27595
1977	4659364044.94893
1978	3247557783.85472
1979	2104266142.51725
1980	4849892043.19653
1981	6898696636.62564
1982	6834866791.52879
1983	6586025321.53605
1984	6197943935.92586
1985	5160233569.17906
1986	4424482070.6207
1987	3128471316.60293
1988	4349650950.91822
1989	3854777403.95676
1990	3488444160.00388
1991	4381873596.30459
1992	3718447786.57311
1993	3359736684.49432
1994	4012308546.25329
1995	3944115817.17666
1996	3885255427.45669
1997	4519943079.26825
1998	5251382398.38058
1999	4844300595.02245
2000	4426875821.64143
2001	5449963924.96676
2002	6140217524.105
2003	6073116225.34933
2004	5605272968.26879
2005	6335285485.5484
2006	6208333553.73649
2007	6187839511.94405
2008	6343790212.86359
2009	6892511226.90596
2010	7448798476.61156
2011	8450507452.41496
2012	9747831541.84602
2013	10377995450.4153
2014	11472965676.2627
2015	12302130395.4795
2016	12464276502.4115
2017	12786136355.3357