Year	current US$
1990	20347945.0087484
1991	-27116125.5249736
1992	-26810579.9386939
1993	-106579408.388842
1994	-122122729.227815
1995	-56614612.3285482
1996	-167791070.667234
1997	-73694968.7703083
2003	-57674426.5850596
2004	-103333625.176415
2005	-134934948.621493
2006	-60925771.8935505
2007	-110351908.361351
2008	-287454295.956893
2009	-206558719.321225
2010	-301328261.257805
2011	-231733149.397569
2012	-126594818.083869
2013	-254922877.819938
2014	-149140506.572094
2015	-66468635.3003808
2016	-76635109.3327229
2017	-85392529.0343984
2018	-55446527.3236477
2019	-25918065.0035399
2020	133133467.26852
2021	354541658.296934