Year	current US$
1990	-3990098753.92293
1991	-10900610317.0541
1992	2195506973.85884
1993	221729896.196456
1994	-196714073.764825
1995	4544002877.59599
1996	4683006859.9643
1997	7850833150.77712
1998	3247021580.08792
1999	18752544310.6095
2000	24814879417.4602
2001	22792820826.5209
2002	29227578302.6681
2003	38821786633.6797
2004	58357464986.2425
2005	95550117273.2357
2006	110234711305.584
2007	127258748055.295
2008	167998920825.136
2009	92942065107.9204
2010	151236163874.045
2011	217810005218.142
2012	224700835733.664
2013	194191836304.9
2014	157955806758.809
2015	53644193266.0565
2016	78433155956.2758
2017	108470644224.094
2018	172717703764.893
2019	164707057801.258
2020	80493843473.2309