Year	current US$
1970	3927024767.65886
1971	4335339581.87668
1972	4656938978.64752
1973	5509223526.18918
1974	6965102322.50957
1975	7537821290.11317
1976	7888770613.3692
1977	8824570744.24304
1978	10209720550.2566
1979	12594492268.8265
1980	14861939035.439
1981	16117353103.0892
1982	17385640399.7501
1983	18068238396.8397
1984	18322199678.8588
1985	21349646719.1151
1986	23084496185.4186
1987	26697249812.5459
1988	27988785629.744
1989	28308220370.0448
1990	30623212144.7651
1991	27407979356.0889
1992	29105497433.8581
1993	27287467839.2047
1994	31506423769.5876
1995	34597080383.4098
1996	37033827150.6831
1997	40246891381.7711
1998	39700394160.3422
1999	43828106123.1801
2000	46281682674.872
2001	48813692801.7019
2002	51756113574.4329
2003	60211217906.564
2004	72737085591.5207
2005	83917849757.4893
2006	94614532218.1218
2007	122727470001.573
2008	125151641720.94
2009	140867722717.585
2010	171103809771.675
2011	191391122919.516
2012	194986686294.505
2013	197675603353.489
2014	219530912719.599
2015	221434275605.55
2016	237257305811.278
2017	273805683661.935
2018	283357797906.251
2019	301033756317.883
2020	310785857214.413
2021	379112694271.928