Year	current US$
1970	199.6283011491076
1971	211.8277274590674
1972	226.14816897615546
1973	280.4155597394812
1974	362.26824892108925
1975	386.9757826848537
1976	408.17450758298236
1977	441.78901875263915
1978	477.7740833093586
1979	529.9519999625604
1980	648.3241055695669
1981	724.897676009032
1982	687.9719835295919
1983	675.2736471408165
1984	651.017711590583
1985	659.0775612920309
1986	658.5046762031022
1987	640.2655319506023
1988	668.2164563007776
1989	655.5072699132567
1990	745.6587437367365
1991	784.937699426202
1992	851.2129253858302
1993	926.2214277806411
1994	954.6752813201315
1995	947.6091190510596
1996	1009.9043329073012
1997	1067.051968104611
1998	1037.224022270379
1999	1067.5274809886823
2000	1122.313367321034
2001	1094.30684933548
2002	1048.11660723202
2003	1137.8594594591743
2004	1289.4453373769895
2005	1468.0780145498215
2006	1660.293321839338
2007	1951.5411550692163
2008	2141.197743618575
2009	2085.353062490519
2010	2482.387868643376
2011	2663.448035603729
2012	2746.107710583993
2013	2753.071556455343
2014	2821.4754032833175
2015	2709.3623002988797
2016	2766.6984436565685
2017	2940.3344148554647
2018	2909.875667578221
2019	2940.3815099945373
2020	2711.9649722645636
2021	3060.4264574891126