Year	current US$
1999	256780151001.672
2000	242326903634.967
2001	234931305633.31
2002	247168269816.659
2003	223145006883.681
2004	211970684208.96
2005	184713500140.994
2006	197005541458.006
2007	215295777929.306
2008	218716725671.438
2009	282776610528.785
2010	300242764004.545
2011	316705331823.261
2012	332540656058.521
2013	330961276552.623
2014	327597107667.848
2015	333872473007.993
2016	344413307190.739
2017	353249050972.537
2018	378390931228.578
2019	386571309967.921
2020	422889191637.957
2021	565771848559.27
2022	557193956727.444
2023	552534720559.608