Year	current US$
1968	4870283626.180433
1969	5412100260.1730995
1970	5762071728.1237335
1971	6271045034.468295
1972	7355242314.224068
1973	9108483160.503698
1974	9983664739.3203
1975	11383139029.43452
1976	13192437321.244184
1977	14735449496.728897
1978	17230354544.824234
1979	19894622393.194042
1980	23041569234.97921
1981	23628554956.605247
1982	24062916721.31206
1983	21838893330.60519
1984	21173432184.871105
1985	21440475719.858223
1986	24697337084.10124
1987	27143185296.5443
1988	29702631093.881485
1989	30323270274.405884
1990	34365891768.68776
1991	34753569692.91496
1992	38730585922.218864
1993	40124916940.59447
1994	43166678735.21832
1995	46425677734.14352
1996	46658755151.6017
1997	47296952928.75605
1998	48706787306.25736
1999	49073380173.71591
2000	47218405892.42581
2001	53749989092.01972
2002	67608919144.368355
2003	85285062818.00766
2004	104120820258.66873
2005	113211158292.9365
2006	115715618613.05196
2007	140186716681.42496
2008	158325614580.628
2009	131069255620.56659
2010	132175349953.71332
2011	141942264554.47513
2012	128814279315.1317
2013	135684315697.71341
2014	141033843265.66858
2015	125174166987.37169
2016	128609822750.03862
2017	143112196040.32568
2018	160565642983.58676
2019	164020460331.65897
2020	157288955508.17633
2021	182109999477.69073
2022	177006128624.62692
2023	212388906458.72394