Year	current US$
1980	853919472.35634
1981	708991183.318545
1982	649066176.107919
1983	694996383.982029
1984	786546544.803371
1985	918204997.485759
1986	917352006.839517
1987	1007495321.09019
1988	1307445444.18268
1989	1263333452.23753
1990	1519708973.50421
1991	1670181170.25602
1992	1673773233.69457
1993	1239847175.96273
1994	984278770.770139
1995	1185077091.16048
1996	1331284019.72511
1997	1280147610.45875
1998	1475169924.05052
1999	1326452906.04567
2000	1166011824.51636
2001	1480733128.20253
2002	1637164619.4876
2003	1805661452.68612
2004	2222631928.53849
2005	3589716049.35845
2006	4072705924.83879
2007	5002510857.97894
2008	5751532163.89517
2009	6880773609.01305
2010	7827225625.65453
2011	8589868176.49802
2012	8946993483.80918
2013	9414120027.85899
2014	10602456256.6701
2015	8459709989.72586
2016	7615864499.99854
2017	7129500557.16308
2018	8236581360.97743
2019	8276252442.48979
2020	7587932345.55186
2021	8355160088.81899