Year	current US$
1981	25550775988.689365
1982	25328561358.92993
1983	25926937319.392586
1984	25538323256.782284
1985	27060034627.373466
1986	29119992335.21862
1987	32673584617.61163
1988	37614323325.49708
1989	38842066258.5528
1990	48594983236.612206
1991	58268809009.78181
1992	36898354459.842735
1993	37215340818.487335
1994	34686676724.14812
1995	32871880513.980232
1996	30858333947.762142
1997	33656485972.983604
1998	33953516004.935196
1999	31171791628.936707
2000	35134340363.08108
2001	32955523947.767372
2002	35793324347.49734
2003	38986842400.747086
2004	42472918812.792305
2005	50662839148.77047
2006	58733812905.94463
2007	73101226182.40445
2008	89172516304.23076
2009	94742425940.21849
2010	96063451993.46729
2011	99225842386.56818
2012	103769465887.15514
2013	102138578481.1215
2014	111020229372.53523
2015	109981429979.77292
2016	101693599094.6026
2017	109074444745.05103
2018	110330023078.05403
2019	118918855274.56805
2020	122036212801.13618
2021	122650696565.95834
2022	135139943730.95232
2023	157976819995.15506