Year	constant 2010 US$
1970	2525136188.32046
1971	2910551393.93228
1972	3161106670.38017
1973	3349147593.313
1974	3680717422.00257
1975	3464641921.81492
1976	3649309862.16565
1977	4030847629.319
1978	4376376864.23118
1979	4524242038.36267
1980	4665006006.35657
1981	4967890322.57353
1982	5226030957.83489
1983	5066247146.49052
1984	5211323274.90484
1985	5462516296.32093
1986	5845084163.55836
1987	6639204516.02167
1988	6528086313.77905
1989	6381513267.09923
1990	6656141917.22334
1991	6837389606.38605
1992	6638734003.52327
1993	6429334403.27488
1994	6610602086.4149
1995	6722975908.14227
1996	6987660636.55893
1997	7354909713.26521
1998	8061213479.94526
1999	8600825897.73978
2000	8966563167.65771
2001	8911296430.90541
2002	9019156643.95372
2003	9448640502.89201
2004	9979929040.42029
2005	10870631678.303
2006	11306295808.8893
2007	11978763210.0966
2008	11612423483.4637
2009	10570867144.0677
2010	10429486599.8037
2011	10592470975.6369
2012	10670978109.2059
2013	10757879985.0475
2014	11039486914.4657
2015	11420931643.0761
2016	12049940395.0075
2017	12852074255.2088
2018	13402694332.2219