Year	current US$
1980	944352779.728793
1981	977222584.404643
1982	974562461.07069
1983	1018214086.6325
1984	951672198.041601
1985	866116805.462841
1986	1023198305.33389
1987	1173813148.98221
1988	1247687257.85002
1989	1283711703.27438
1990	1330226375.60064
1991	1956102665.11504
1992	1974314096.47353
1993	1671316203.41604
1994	1755746470.62969
1995	1884044680.90786
1996	2016653805.82124
1997	1951534939.31447
1998	1913319249.97038
1999	1883676446.10745
2000	1685448884.56128
2001	1586367570.91019
2002	1687253947.80531
2003	1965067550.2389
2004	2215603702.23195
2005	2644996390.73191
2006	3076290602.65943
2007	3410868371.46269
2008	4148018489.48072
2009	4169719833.75847
2010	4631672245.55203
2011	5566588660.04563
2012	5498149502.27279
2013	6068102674.17665
2014	5519299451.27485
2015	5362348342.72415
2016	5612029554.95214
2017	5965315417.89539
2018	6798011634.05522
2019	7298905585.78212
2020	7580647427.35943
2021	8391225494.76751