Year	current US$
2002	4519275256.42123
2003	5077090826.30095
2004	7274370091.09923
2005	7786942116.52625
2006	9125657617.54281
2007	12003448173.0635
2008	14710736961.7292
2009	15914066364.4545
2010	23715055402.8283
2011	32225654661.5018
2012	37804652712.7602
2013	45227504370.5491
2014	45232566457.0711
2015	33406012300.9205
2016	32996377810.8975
2017	38830088629.7161
2018	43656892626.9532
2019	43701215884.0759
2020	11339626767.4251
2021	18682083823.1614
2022	13109377191.9567