Year	current US$
1970	7260000.229
1971	7260000.229
1972	13859999.66
1973	12539999.96
1974	18479999.54
1975	13199999.81
1976	436914813.897
1977	964574845.0587957
1978	1392797381.8575761
1979	1600425198.918717
1980	2205749808.282197
1981	2275626724.250609
1982	2775504501.080793
1983	3104224642.315639
1984	2722863663.326501
1985	2703890185.1517096
1986	2647729786.1211762
1987	2409736700.197175
1988	2114931644.232833
1989	2293155592.2071915
1990	2333913065.703255
1991	1886343005.7856038
1992	1912133016.8999422
1993	2571328104.5241294
1994	2708987263.240023
1995	2286876944.0151362
1996	1912124457.9498394
1997	3015911806.2154984
1998	2362087469.98389
1999	3098394631.8320017
2000	3258345788.01538
2001	2954183941.97816
2002	5124985245.45958
2003	5505421121.805137
2004	7123395924.75421
2005	20952139544.433353
2006	24683517423.87958
2007	27042430622.531048
2008	31203318203.97977
2009	31898148200.59315
2010	35720374883.36387
2011	41567350998.45716
2012	44903198147.88073
2013	45968513727.40627
2014	49369322889.36539
2015	49358929681.55452
2016	49928331919.235634
2017	53797899757.58916
2018	58399190779.11882
2019	60109356975.070366
2020	56571611066.86556
2021	68021163951.450134
2022	75969462658.09303