Year	current US$
1964	124892320.26143791
1965	130252100.84033613
1966	134873949.57983193
1967	140469613.2596685
1968	137815126.05042017
1969	153001200.4801921
1970	158223289.3157263
1971	164741275.57160047
1972	190262172.28464422
1973	219178921.56862745
1974	243625730.99415207
1975	262389380.53097346
1976	248203054.80682838
1977	289921465.9685864
1978	384383954.1547278
1979	454919583.7275308
1980	455714285.71428573
1981	485936151.8550474
1982	571832122.6795802
1983	449389920.4244032
1984	483466135.4581673
1985	334452787.593247
1986	206090846.38329607
1987	224243098.43433306
1988	417255022.45186687
1989	370729677.494859
1990	206585845.780014
1991	188078564.17202845
1992	135469763.71645975
1993	170666079.29515418
1994	175038520.53860575
1995	149165783.8983051
1996	129365374.1718258
1997	113702496.17931737
1998	87155282.68099257
1999	83239663.00853564
2000	79422111.75374027
2001	436535494.9149129
2002	486451786.56503093
2003	521313216.06542015
2004	503032206.71528524
2005	574616242.8692257
2006	644874707.4943897
2007	718204627.7853373
2008	843240768.5354594
2009	813066235.43485
2010	909173705.8540952
2011	1027004397.6287847
2012	1225086935.2431998
2013	1401291540.9790053
2014	1495866987.8461363
2015	1442678329.393223
2016	1265289017.0653458
2017	1190063772.0003378
2018	1321396781.8981013
2019	1337277076.777584
2020	1258824811.2117212
2021	1373566072.8440504
2022	1182332988.0798566
2023	939831841.1275618