Year	current US$
1994	7323012938.93205
1995	1703291674.70193
1996	77963771.0986404
1997	-237411810.155067
1998	-460179766.655829
1999	875283931.5673
2000	1054341844.87435
2001	1740887066.20205
2002	2765817462.12928
2003	3089046039.69827
2004	7480434016.89352
2005	6122722164.52694
2006	5639992446.43387
2007	9821000330.00671
2008	6167164572.81474
2009	-4441671896.23551
2010	-535537475.290707
2011	-2944030945.97922
2012	-857687898.886208
2013	-10111227699.2369
2014	-3277578747.67589
2015	8228515571.28279
2016	6150783983.59384
2017	5361079303.3696
2018	1975633756.73237
2019	-126787043.055649
2020	-1970400816.09933
2021	-1405286066.41377