Year	current US$
1995	-2670561025.92488
1996	-2366848782.31622
1997	-1053671824.89076
1998	-721015935.837631
1999	-688597947.385514
2000	-870217113.573977
2001	-610730447.659115
2002	-68802088.2435396
2003	-851443833.916597
2004	496955545.356272
2005	2851548509.63116
2006	3886415583.0705
2007	7883157721.73814
2008	8043450468.59735
2009	1402374964.13442
2010	5093440039.12537
2011	6631364211.42871
2012	7685820932.49132
2013	8548698379.82715
2014	9294280590.95176
2015	8272446118.24688
2016	6383579601.96426
2017	6774992422.22219
2018	8597121090.54435
2019	6897187349.11635
2020	5300959310.18197
2021	5264391938.12473