Year	current US$
1980	75124276.92965394
1981	96780299.06339374
1982	23760156.279572826
1983	2277625.2598942304
1984	21667564.128524464
1985	10338334.530431952
1986	46628993.8092176
1987	3545485.069389119
1988	8445440.674904387
1989	15427874.950091988
1990	23680566.841192093
1991	17174045.34420199
1992	20865926.675542302
1993	27105446.644289862
1994	30798531.546145312
1995	23964665.5521843
1996	3938715.8839877434
1997	-6432888.288569103
1998	23495017.40723982
1999	34948683.12496033
2000	37506512.41998943
2001	17643963.39634095
2002	12711235.081622388
2003	16565159.871883059
2004	26383843.046739757
2005	40225753.76423823
2006	48848082.25508318
2007	82729553.49934794
2008	90284369.70571627
2009	79780845.73298563
2010	89964133.60583661
2011	110418206.87437043
2012	93172999.72679931
2013	69563236.46724884
2014	79373988.32751828
2015	122028622.7790411
2016	85917383.7158232
2017	118097514.36347142
2018	125718891.62490776
2019	79055523.69406863
2020	-127587173.58176509
2021	31300718.186177846
2022	35198038.647046365
2023	-261294115.58793172