Year	current US$
2000	16206152402.287731
2001	14451865847.201357
2002	15465225045.392696
2003	16213884140.667143
2004	17617741480.594982
2005	19530582724.031944
2006	23895240298.932034
2007	29439721153.00835
2008	34661092674.35214
2009	32758436095.471096
2010	42511705323.276184
2011	44423040919.43283
2012	52200933933.824066
2013	59003565755.08494
2014	62061534975.191216
2015	68127953250.83006
2016	79645993667.54271
2017	84232079455.64336
2018	94629911709.57567
2019	102326866710.3652
2020	77061177023.75877
2021	87799824743.2656
2022	94400203293.871
2023	103253481558.26343