Year	current US$
1980	1417352348.102945
1981	1443085638.2978723
1982	1322606382.9787233
1983	1638031648.93617
1984	1663031914.893617
1985	1301861702.1276596
1986	812765957.4468085
1987	863563829.7872341
1988	747872340.4255319
1989	951861702.1276596
1990	694946808.5106382
1991	1320212765.9574468
1992	1397606382.9787233
1993	951861702.1276596
1994	1093085106.3829787
1995	854521276.5957447
1996	878989361.7021277
1997	1107712765.9574468
1998	1324734042.5531914
1999	523404255.31914896
2000	1502180851.06383
2001	1410106382.9787235
2002	2239867021.2765956
2003	2628696808.510638
2004	2698404255.319149
2005	4269281914.893617
2006	5623218085.106383
2007	7543191489.361702
2008	8985478723.404255
2009	5997127659.574468
2010	7016250000
2011	6446808510.638298
2012	8654813829.787233
2013	8440930851.063829
2014	8962765957.446808
2015	7927473404.25532
2016	9397765957.446808
2017	11686276595.74468
2018	13330664893.617022
2019	12615265957.446808
2020	12150464893.617022
2021	10052120744.680851