Year	current US$
2006	836660000
2007	1090837095.7530982
2008	1020568721.7847309
2009	966406091.0979657
2010	994740646.84783
2011	878623767.0964221
2012	880786069.0166351
2013	879408525.982819
2014	982970856.8549856
2015	888006287.859377
2016	943895119.7388906
2017	949601320.9266922
2018	1096566349.36192
2019	1071704314.8177799
2020	796408845.203596
2021	839682594.5679