Year	current US$
1986	20979458835.890793
1987	16131264285.98613
1988	17670617014.042465
1989	17838505565.870697
1990	16252605522.938354
1991	19995660896.78296
1992	16209412943.734467
1993	18072218070.541763
1994	17590807842.255157
1995	18802667036.26068
1996	21513041616.0782
1997	23553691540.500366
1998	17383629774.640594
1999	16407191093.722961
2000	18967180114.45584
2001	19826310840.23575
2002	22323186144.495605
2003	27596421665.067078
2004	36267403278.20993
2005	43612751280.9469
2006	56377581146.44391
2007	68507768911.86499
2008	83624718972.50916
2009	73453524934.27393
2010	95010729918.28986
2011	104174504011.3623
2012	98187716957.33344
2013	112458675486.99323
2014	122257489767.31677
2015	107388667006.61682
2016	114303043448.80774
2017	132326041892.68335
2018	140128094716.0536
2019	142663679416.3755
2020	143902508426.2561
2021	165272882695.88757
2022	182350906362.00696
2023	199862065875.9275