Year	current US$
2005	-6029681232.43359
2006	-6401485030.26245
2007	-7387687836.7119
2008	-6700464661.97869
2009	-5577265367.78577
2010	-5163656787.05013
2011	-6343936736.43501
2012	-4930968082.03424
2013	-4766639897.76877
2014	10785145858.0663
2015	9336203152.73147
2016	8375507308.11203
2017	7445947882.46671
2018	7501899154.23588
2019	8444011701.69949
2020	11308815800.0185