Year	current US$
1960	37777799.5478523
1961	-38069179.10447754
1962	-188604.66167655334
1963	-17774811.111111112
1964	-41462555.55555555
1965	139714285.7142857
1966	-236962962.96296296
1967	50735177.53865455
1968	-61871996.16982881
1969	-30308803.408441436
1970	-92440984.15762137
1971	-316756382.53575677
1972	39603598.165246695
1973	233160951.47995266
1974	-134872245.47899792
1975	236520895.64303616
1976	483441418.0717683
1977	713978822.1089785
1978	657756746.387006
1979	494919891.04147524
1980	207410164.91709727
1981	-1297945280.8997014
1982	-1667093178.207965
1983	-1076993310.7187014
1984	-221548838.2473281
1985	447503717.31644464
1986	2391414016.620955
1987	1467222463.353238
1988	952681940.5341319
1989	1654161222.082319
1990	1410217815.4740572
1991	2312713414.998744
1992	-335465538.71294373
1993	-3861135460.2460594
1994	-4837630362.716868
1995	-5947254613.071602
1996	-5484487361.599812
1997	-6307644264.738445
1998	-5805004003.412963
1999	469252375.41891193
2000	-835760658.0774249
2001	-3070577186.6333766
2002	-3282653778.3466964
2003	-3185356027.4430103
2004	-2718797023.3394227
2005	-5067786617.724861
2006	-6769709371.059976
2007	-8728898040.588734
2008	-7150135804.746487
2009	-5363370847.580276
2010	-4535024401.03265
2011	-3073024232.6326375
2012	-4495521440.907313
2013	-6930298384.874485
2014	-16080615459.958372
2015	-20721562436.50308
2016	-19135554970.043415
2017	-15569440551.721966
2018	-15825333143.90074
2019	-18808380840.686134
2020	-18954175957.96994
2021	-24415341500.884552
2022	-26276761729.324554
2023	-18045218728.97846