Year	current US$
1960	39580001.8310547
1961	290709991.455078
1962	179990005.493164
1963	185220001.220703
1964	235490005.493164
1965	234550003.05175802
1966	320920013.42773396
1967	180669998.168945
1968	219669998.168945
1969	139080001.831055
1970	136850006.10351598
1971	120069999.69482401
1972	94430000.3051758
1973	65099998.474121094
1974	129809997.558594
1975	132580001.831055
1976	92529998.7792969
1977	67559997.55859381
1978	89279998.7792969
1979	87760002.1362305
1980	83150001.5258789
1981	227130004.882813
1982	177690002.44140598
1983	106720001.22070299
1984	153559997.55859402
1985	84970001.2207031
1986	147740005.493164
1987	293089996.33789104
1988	218750000
1989	232399993.89648402
1990	174380004.882813
1991	196139999.38964802
1992	-235580001.831055
1993	197520004.272461
1994	259869995.117188
1995	264329986.572266
1996	257799987.792969
1997	229789993.28613302
1998	260609985.351563
1999	144380004.882813
2000	255679992.67578098
2001	252020004.272461
2002	236410003.66210902
2003	229300003.05175802
2004	178279998.779297
2005	217240005.493164
2006	110199996.94824201
2007	328589996.33789104
2008	468630004.88281304
2009	374809997.558594
2010	464779998.779297
2011	840690002.441406
2012	1288540039.0625
2013	1155729980.46875
2014	914150024.414063
2015	1003190002.44141
2016	674630004.882813
2017	273869995.11718804
2018	444970001.220703
2019	272500000
2020	612539978.027344
2021	1114540039.0625
2022	577010009.765625