Year	current US$
1997	-43211128.0155485
1998	-439776553.934039
1999	-214249189.61123
2000	-79915550.3201242
2001	1412570.92670706
2002	-20730843.5752136
2003	-112168768.437906
2004	17993406.4059178
2005	40434657.098987
2006	5374515.60066956
2007	456510465.22612
2008	122521143.740411
2009	628063645.583748
2010	190047321.659482
2011	216244473.307472
2012	73196523.2953102
2013	-542900646.390396
2014	-578907436.799111
2015	-594404690.861573
2016	455410178.573091
2017	682485726.908738
2018	875349136.060222
2019	450803578.87633
2020	998633285.328585
2021	-208264386.412313