Year	current US$
1970	233403409.0909091
1971	247179545.45454547
1972	289636301.83548605
1973	404493509.3753467
1974	468893446.7233617
1975	461359141.18412495
1976	568047977.1641873
1977	716305626.7913712
1978	903769318.726716
1979	1066704197.3908112
1980	1182341379.0228448
1981	1191331358.4895213
1982	1016617900.6598389
1983	1081525794.1938913
1984	1072642449.4457889
1985	1183251902.6590247
1986	1516684791.335192
1987	1864331518.3105292
1988	1910725693.960106
1989	1873815640.4601538
1990	2144153418.2740316
1991	2130770692.399354
1992	2113685423.2881925
1993	2007806139.35435
1994	2251420757.0584636
1995	2493202435.5520105
1996	2658458135.338346
1997	2689829671.825263
1998	2871539298.4330235
1999	2915299611.669544
2000	2899936221.634273
2001	3042019192.277926
2002	3309446650.018492
2003	3728493371.0516367
2004	4480777641.800954
2005	5116287715.320482
2006	5310428255.913365
2007	7110704784.950433
2008	7284145795.408418
2009	6408804966.741724
2010	7115708401.44135
2011	8302715851.674408
2012	8102421429.804228
2013	8586232153.761143
2014	9205258378.50518
2015	9047940782.564583
2016	9873435454.662554
2017	11308798727.139011
2018	12092271468.62804
2019	10789017067.646133
2020	7204860633.216085
2021	9610900861.965553
2022	13139690513.538864
2023	13452788332.496647