Year	current US$
1981	100799916602.74445
1982	93779226720.93533
1983	67785499086.6929
1984	55110434293.0496
1985	53225325941.43581
1986	50076834171.20771
1987	49742002241.07124
1988	48260286839.795135
1989	44375832179.82359
1990	53387706900.62778
1991	55564854128.89066
1992	53756134922.837296
1993	57098317010.43564
1994	58196754287.385254
1995	81730862087.97215
1996	96878797236.75276
1997	103076186635.1128
1998	124526481157.43329
1999	57369126074.57405
2000	58078024416.85101
2001	63444797004.87138
2002	69445221932.25371
2003	81007735787.21815
2004	105649363108.32433
2005	129732252431.60577
2006	178462711867.67435
2007	215558640649.9376
2008	255974807741.68253
2009	240001380648.7161
2010	280464669267.73987
2011	308999264584.73517
2012	342459284979.90436
2013	397847405707.72766
2014	438847887555.99786
2015	410896874671.3692
2016	375046327255.64636
2017	352506900228.4537
2018	377320134219.3912
2019	397431323633.7358
2020	367963817547.15063
2021	379341469541.1161
2022	385714568846.08234
2023	348318580430.13983