Year	current US$
1970	1810000.0042468305
1971	2330000.039190058
1972	2050000.03054738
1973	4679999.899119142
1974	8280000.265687704
1975	11419999.8099357
1976	11049999.887123702
1977	17309999.903663997
1978	25120000.07741154
1979	32160000.309348103
1980	40579999.88272782
1981	35899999.60176645
1982	48350000.318139784
1983	45969999.92802739
1984	35069999.085739255
1985	38989999.59602954
1986	45620000.02153217
1987	54129999.88161026
1988	63150000.346824475
1989	85189999.7554719
1990	77340000.50649047
1991	71090001.46761532
1992	84349999.50602649
1993	64989999.55691403
1994	75100000.68135561
1995	70059999.39143656
1996	69000000.07823102
1997	63649999.97615817
1998	56649999.776855096
1999	128099997.09017573
2000	141040003.05943197
2001	107780000.35323206
2002	121000001.71922156
2003	171260003.66918743
2004	222230002.3771818
2005	265130004.67419642
2006	292230000.6877628
2007	386760006.6401067
2008	376899999.02993476
2009	366579996.88945717
2010	598350000.1430507
2011	640200010.4021281
2012	663870004.3577701
2013	585649994.3528324
2014	466060003.5265085
2015	446140003.58059996
2016	362879998.49393994
2017	441169993.3949857
2018	379530003.0559302
2019	363970000.1347814
2020	376050000.86687523
2021	668739997.3962448
2022	481300003.6086886