Year	current US$
1970	2499850.9291162
1971	1903611.72553097
1972	3326240.5276238
1973	15127774.0178049
1974	31265302.4968232
1975	10328825.6958571
1976	10547914.8640357
1977	9649218.38169755
1978	8767376.69818008
1979	10356477.1167632
1980	4948913.1223381
1981	4737603.2135782
1982	15480641.0280786
1983	20994649.4545846
1984	13573201.5662455
1985	16615905.8841573
1986	8373937.6858599
1987	14108284.7214791
1988	95664967.4142939
1989	100517986.589739
1990	68316398.6140692
1991	38100203.8935777
1992	81127689.8704631
1993	44064111.8728662
1994	92899663.4848695
1995	139337240.549194
1996	66390527.1622205
1997	69647584.8367098
1998	52478269.0672298
1999	37359207.5714816
2000	30994301.6627062
2001	30507029.9024942
2002	19339294.0649778
2003	20396096.0419364
2004	168087162.825707
2005	358247449.463073
2006	956420306.802369
2007	1698116771.61804
2008	1661684797.4881
2009	817433665.267425
2010	1816425709.57534
2011	2926410178.93203
2012	1902746887.9486
2013	2152864241.09406
2014	1315909129.36365
2015	585801664.077134
2016	614684808.685575
2017	1028865432.34826
2018	1077383198.1412
2019	1037463018.1467
2020	1444619655.06098
2021	6081363266.15802