Year	current US$
2000	21151358747.291664
2001	19976184479.70882
2002	21190995934.447712
2003	21617788673.622707
2004	22811878152.85308
2005	26070722327.396114
2006	30418652486.804207
2007	36110886524.732796
2008	42261630721.07828
2009	38254473607.29374
2010	45672798003.99311
2011	50835164920.05647
2012	55863909090.94138
2013	58014120003.95324
2014	61207491369.44091
2015	61068601786.174225
2016	62419995966.096855
2017	64054407390.96241
2018	66240722688.31287
2019	69774333445.25365
2020	63878664971.5493
2021	69517344053.84854
2022	69667576219.04825
2023	70896293017.1784