Year	constant 2015 US$
1980	539576624.0074741
1981	431436400.43112516
1982	420404887.62162757
1983	418022893.98419803
1984	421619705.22805375
1985	380071977.675442
1986	416892211.87989986
1987	499509311.2725338
1988	566718172.3851672
1989	621367176.8608723
1990	890782319.3013048
1991	956765657.3568844
1992	1011490944.7074251
1993	1066235700.84854
1994	1087141891.3844469
1995	1113661709.365295
1996	1114615729.4421968
1997	1059782021.9136468
1998	1100810201.1289535
1999	1169368367.302358
2000	1178336526.380813
2001	1221491455.273254
2002	1273845421.5122108
2003	1289278275.7561858
2004	1301022672.913355
2005	1328732189.95575
2006	1351019664.4892318
2007	1359721569.8547275
2008	1291492203.4434078
2009	1358792583.6567717
2010	1309458326.9275792
2011	1361381407.5082972
2012	1437261260.0991137
2013	1523064482.6273985
2014	1601200207.748244
2015	1767906855.51798
2016	1781425188.6126056
2017	1760786156.6242762
2018	1734715181.0378563
2019	1817550264.755323
2020	1614642098.988238
2021	1824836118.9152226