Year	current US$
1996	-192372028.040494
1997	-338382223.673231
1998	-435146103.695859
1999	-194141800.642295
2000	-175059783.578076
2001	-102056870.51729
2002	-64889347.5871216
2003	-101328216.421534
2004	128986560.271602
2005	179394040.498953
2006	223261999.161389
2007	485145376.020099
2008	736400727.680829
2009	270839339.443248
2010	703328808.591496
2011	740481802.308234
2012	1057099922.71494
2013	1212515396.26518
2014	1321452307.45493
2015	386469440.273345
2016	717039876.320132
2017	774409873.725616
2018	625119201.235242
2019	792819536.654972
2020	868372798.193637
2021	971077017.951828