Year	current US$
1967	-458608285.76949257
1968	-333117339.1955865
1969	-484662576.68711656
1970	-273972602.739726
1971	-207411919.3321261
1972	-261686746.98795182
1973	93253012.04819277
1974	1955180722.8915663
1975	174939759.03614458
1976	500000000
1977	1562891566.2650602
1978	524601303.6878535
1979	3328732396.009156
1980	6011898212.282464
1981	1781847508.8348818
1982	-3532551268.5636535
1983	-865978918.3954104
1984	3834824869.1489434
1985	2419636586.288246
1986	-14658182.958432516
1987	1654773878.2215974
1988	2384647396.8367577
1989	2921595780.7226024
1990	1825255936.482817
1991	2172617938.216187
1992	4080850476.866083
1993	4718460796.394001
1994	2026749971.0748582
1995	-2696966881.7501163
1996	-1399777995.9868505
1997	-594112855.4576184
1998	9306014192.938171
1999	11318192667.462654
2000	17356482696.0358
2001	13270680431.764637
2002	12318361643.817139
2003	17229518703.499615
2004	11999661267.373825
2005	11853826411.595919
2006	19731671212.01794
2007	17471008751.777706
2008	5383772872.613953
2009	15141253737.08937
2010	14322535354.542046
2011	22098243865.64321
2012	-3617699111.773167
2013	-7210947468.942496
2014	-6665132944.295778
2015	3294646502.2449255
2016	7051011911.27182
2017	10147166710.819906
2018	-11139964498.60268
2019	-4976882675.837271
2020	17899733711.218025
2021	31185663098.50395
2022	46716269479.10338
2023	29857207586.11378