Year	current US$
1970	-194141561.20506215
1971	63473744.950952105
1972	291686922.7029655
1973	19479615.973285098
1974	-1715388858.2460012
1975	-891122656.426474
1976	-350740452.06547153
1977	-247852276.09361115
1978	137959866.2207358
1979	-321546629.2697586
1980	-251881876.08569774
1981	-738489717.7587211
1982	-718135469.774217
1983	-285883280.7570978
1984	-558436171.3159804
1985	-526854219.9488491
1986	154203633.29108578
1987	903744970.5973383
1988	1799033816.4251208
1989	317216073.85926497
1990	416542162.194466
1991	1576074724.2853928
1992	1311675882.6031475
1993	1707870139.925889
1994	1516576103.5472252
1995	1196865037.194474
1996	1109338143.4716249
1997	921011158.0407237
1998	752671193.2206959
1999	293736052.72717834
2000	1565011197.470689
2001	1954629164.5739157
2002	2024249593.3757207
2003	1557347013.55808
2004	298487394.9579832
2005	-1661620784.3413365
2006	-430581674.34018546
2007	166090982.5824943
2008	-334575103.6761088
2009	2818414641.7640076
2010	3363515074.2792616
2011	2607814903.536443
2012	1225812230.3205163
2013	3073622675.9814
2014	1632607914.1664176
2015	1811049704.4927561
2016	1544003759.0713701
2017	2033524977.9440982
2018	-66424111.02974685
2019	502676439.1007164
2020	-1116689273.5359366
2021	-9828830103.26779
2022	-13070135579.249956