Year	current US$
1981	67809272108.06578
1982	61903756629.56407
1983	49587433106.71781
1984	40946372707.11557
1985	44583710683.718216
1986	41371748547.10885
1987	41700526501.40345
1988	45279373941.61049
1989	43996427028.63596
1990	49651280859.30323
1991	53286259729.62317
1992	47810977129.47989
1993	49927481904.89032
1994	55518991403.372314
1995	73449309116.63672
1996	85276566453.54796
1997	90888627968.91718
1998	91795253768.05261
1999	57279058296.09174
2000	59460467608.65012
2001	60425986890.697586
2002	64290792416.122696
2003	72102302970.70267
2004	84114988234.87097
2005	96962395560.84311
2006	113232066133.43095
2007	128988054012.62704
2008	148542851650.21854
2009	147069984613.62952
2010	158195099787.6172
2011	184902673626.68597
2012	202057090249.6798
2013	228866780664.01373
2014	250969081462.18973
2015	244208479164.11017
2016	256957429887.84067
2017	266197593424.64575
2018	297640991793.56116
2019	326699547973.426
2020	324737047226.1439
2021	368355240981.46185
2022	402373613360.57135
2023	391909491956.85754