Year	current US$
1961	-105052154.86840639
1962	-134006459.03708377
1963	-137718549.31511933
1964	-169085712.16451982
1965	-83769633.5078534
1966	-88038911.45551856
1967	125271857.32927361
1968	146258894.67716226
1969	281442825.25928843
1970	292796868.0604675
1971	188058850.17363152
1972	453609438.9051545
1973	506946468.47372
1974	449957796.5821094
1975	561885747.7366015
1976	1375183493.7204373
1977	1027027027.027027
1978	185751890.55925626
1979	291244650.1036347
1980	-149113268.40810332
1981	-471433711.3211899
1982	182210069.75877923
1983	539836179.9529178
1984	2681760040.931185
1985	3583993838.847351
1986	3739299604.412627
1987	5271695572.724649
1988	5329490135.79298
1989	7885340318.364926
1990	6568118360.666261
1991	6048898447.298841
1992	5422330591.894693
1993	8119362173.478068
1994	1571602567.5115614
1995	-6481913453.922803
1996	-2371398715.3770747
1997	-5954340711.666356
1998	905448481.040131
1999	8561650016.113439
2000	7568699271.88058
2001	7945760538.547844
2002	13569191722.389147
2003	14681734998.555239
2004	14729840780.688238
2005	22181639901.493225
2006	21601777484.14519
2007	22588716895.917755
2008	22308427572.54458
2009	16851033637.56571
2010	13431684503.628252
2011	9568088386.43371
2012	2969283368.8544593
2013	1654461062.4033005
2014	597362705.5578332
2015	7392008256.2002125
2016	7325324487.101034
2017	3443899810.0908484
2018	-773234675.0015947
2019	5660728667.748777
2020	6654849688.031764
2021	20546489563.567364
2022	14676781992.326548
2023	3210643529.8022895