Year	current US$
1960	156609195.40229884
1961	182183908.045977
1962	210632183.90804598
1963	169252873.56321838
1964	151436781.6091954
1965	152011494.25287357
1966	197126436.7816092
1967	200574712.64367816
1968	187356321.83908078
1969	251149425.28735632
1970	264942528.73563218
1971	203160919.5402299
1972	244827586.20689654
1973	413793103.44827586
1974	392816091.954023
1975	482471264.3678161
1976	710057471.2643678
1977	623563218.3908046
1978	527055702.9177719
1979	407925407.9254079
1980	191800000
1981	554382826.4758497
1982	384453781.512606
1983	337846153.84615386
1984	55307692.30769231
1985	267187500
1986	1100200000
1987	1146666666.6666653
1988	1517000000.0000017
1989	1941444444.4444447
1990	3263444444.4444447
1991	5698533640.022997
1992	876334263.8968716
1993	1044280477.5474848
1994	1557438132.1022482
1995	1284183489.0182724
1996	386010143.97277886
1997	1045888257.1586865
1998	958187447.4295313
1999	821885572.1471832
2000	2590451788.5443707
2001	4710729715.761874
2002	5792336970.928859
2003	6963021632.793503
2004	9836592427.444214
2005	12348018232.735016
2006	15481649185.160896
2007	24002446952.036114
2008	24265150995.40083
2009	12579657423.076923
2010	18568840103.448277
2011	18476935631.57895
2012	4899819966.666667
2013	5387045479.452051
2014	3841490191.0112357
2015	4403283929.292929
2016	3989182666.6666665
2017	4564227023.809524
2018	1057664513.5135134
2019	1747662168.5950413
2020	1644248195.4787233
2021	1313579387.3689592
2022	1354492669.0415475
2023	2336527197.464789