Year	current US$
1980	731155962.779213
1981	779980704.195321
1982	774351863.264236
1983	869598400.84196
1984	782522115.85069
1985	919167991.360147
1986	926667529.692221
1987	850218866.784182
1988	807283145.094622
1989	828706070.679079
1990	818454944.65541
1991	860593604.09073
1992	780666049.805059
1993	673085730.138488
1994	637365515.631605
1995	616319837.560598
1996	488110615.926521
1997	598565119.603622
1998	530054474.964445
1999	568849172.098723
2000	638432663.284141
2001	583535754.233434
2002	504294807.408745
2003	348552859.970752
2004	490925276.909505
2005	648904378.722445
2006	799984617.608898
2007	711754129.222693
2008	845722051.987552
2009	974259159.622995
2010	1257663840.20629
2011	1360997177.05288
2012	1602856397.28698
2013	1712881945.07136
2014	1898861568.50792
2015	2232109159.6808
2016	1803926236.80272
2017	1850167611.06086
2018	1934134751.33482
2019	1869995874.80877
2020	1892961448.99559
2021	1956913335.19449