Year	current US$
1970	34729999.5422363
1971	12810000.4196167
1972	37270000.4577637
1973	28969999.3133545
1974	9689999.5803833
1975	12050000.1907349
1976	19290000.915527303
1977	31469999.3133545
1978	156919998.168945
1979	342079986.57226604
1980	326700012.207031
1981	293850006.10351604
1982	79629997.253418
1983	42900001.5258789
1984	17680000.3051758
1985	38060001.373291
1986	89059997.55859381
1987	248830001.831055
1988	189070006.1321262
1989	135799999.95231628
1990	1149979995.9659584
1991	1717899986.267089
1992	2733879955.768587
1993	2039099973.17568
1994	1849659972.2001755
1995	4421980069.667101
1996	1116079989.4332886
1997	434539998.7399578
1998	421419999.8378753
1999	548590004.0268902
2000	472460003.733635
2001	495359992.6233291
2002	855079973.2804294
2003	625179994.1062927
2004	648239992.9165845
2005	370029993.6532974
2006	443750006.1988831
2007	410430006.5785646
2008	537589995.2650071
2009	679519997.2391135
2010	592990002.75135
2011	594169991.3740159
2012	629940003.5142901
2013	632820000.8869171
2014	869159998.5361109
2015	1040290012.8364568
2016	770209996.342659
2017	1232110024.243594
2018	992519995.8086019
2019	905230011.2247468
2020	1275030003.070832
2021	1092630003.5268059
2022	2564420034.8854065