Year	current US$
1995	-2253326765.52099
1996	-3128507627.40726
1997	-3397042255.02532
1998	-4055290539.84027
1999	-3476621455.9653
2000	-3680372219.45102
2001	-3051347041.47685
2002	-1921646262.58853
2003	-1991955017.15584
2004	3408790437.65593
2005	3089789774.35102
2006	3033221907.52985
2007	8465831912.02233
2008	6069681937.24164
2009	-5950702022.3869
2010	-2625971147.77723
2011	-5104013410.69931
2012	-331346122.315448
2013	-9241932952.02661
2014	-5084726885.80765
2015	5897006367.75494
2016	2645208735.39391
2017	3675869159.19398
2018	-2568699.89570928
2019	-254778832.207494
2020	-1183153960.97611
2021	-3522261612.21793