Year	current US$
1991	350000000
1992	926000000
1993	741904761.9047619
1994	-8898678.414096916
1995	-5800163.706622504
1996	-79803560.4665439
1997	-628577793.1185068
1998	-960725683.027552
1999	-468606996.9684121
2000	200206546.42039037
2001	35293806.231121495
2002	317589162.9109118
2003	120243102.37266305
2004	4631773.969430292
2005	599818511.7967331
2006	1827713625.8660507
2007	2188086303.9399624
2008	3858979353.330736
2009	-2180350877.192982
2010	-1141403508.7719297
2011	2494035087.7192984
2012	2929824561.4035087
2013	425614035.08771926
2014	1073684210.5263158
2015	-3561714285.714286
2016	-6418285714.285714
2017	-3276285714.285714
2018	3628000000
2019	2343714285.714286
2020	-136857142.85714287
2021	4032085714.285714
2022	7307700000
2023	5556000000