Year	current US$
1980	2800213053.8604403
1981	3082181382.9787235
1982	3200797340.425532
1983	3595744414.8936167
1984	3802393882.9787235
1985	3216223404.255319
1986	2628191489.361702
1987	2884308510.638298
1988	3041755319.1489363
1989	3438031914.8936167
1990	3343617021.2765956
1991	5107180851.063829
1992	5338297872.3404255
1993	5036702127.6595745
1994	5166223404.255319
1995	5175797872.3404255
1996	5387234042.553191
1997	5741489361.702127
1998	6139361702.127659
1999	5567553191.489362
2000	7019015957.446808
2001	7163430851.063829
2002	8261595744.680851
2003	9299015957.446808
2004	10983936170.212765
2005	12858882978.723404
2006	14401595744.680851
2007	17041994680.851063
2008	20755824468.085106
2009	18587420212.765957
2010	20930026595.744682
2011	21673962765.957447
2012	25089494680.851063
2013	26768031914.893616
2014	27867473404.255318
2015	27547180851.063828
2016	29404388297.87234
2017	32468218085.106384
2018	34891622340.42553
2019	34296702127.659573
2020	32669863563.82979
2021	31646226063.82979