Year	current US$
1960	137309997.55859402
1961	188279998.779297
1962	229589996.33789098
1963	222669998.168945
1964	162080001.831055
1965	189410003.66210902
1966	202970001.220703
1967	197729995.727539
1968	174630004.882813
1969	172149993.89648402
1970	175800003.05175802
1971	203589996.33789098
1972	232509994.506836
1973	82919998.1689453
1974	50189998.626709
1975	58490001.6784668
1976	126029998.77929701
1977	93010002.1362305
1978	175610000.61035198
1979	583419982.910156
1980	952929992.675781
1981	727099975.585938
1982	647500000
1983	355859985.35156304
1984	240479995.727539
1985	180100006.10351598
1986	339959991.455078
1987	378869995.11718804
1988	281779998.779297
1989	144910003.66210902
1990	1303849975.58594
1991	1610030029.29688
1992	356269989.013672
1993	447730010.986328
1994	198350006.10351598
1995	313559997.558594
1996	246080001.831055
1997	6760000.228881841
1998	28090000.1525879
1999	12449999.8092651
2000	328570007.324219
2001	133259994.506836
2002	273440002.441406
2003	167639999.38964802
2004	288880004.88281304
2005	399329986.57226604
2006	569260009.765625
2007	801539978.027344
2008	1123359985.35156
2009	1356969970.70313
2010	1049589965.82031
2011	3288270019.53125
2012	3112169921.875
2013	2847840087.89063
2014	3446770019.53125
2015	2141260009.76563
2016	3609090087.89063
2017	3159280029.29688
2018	1195930053.71094
2019	700299987.792969
2020	542299987.792969
2021	1059540039.0625
2022	800270019.53125