Year	current US$
1967	695794221.3229733
1968	829701135.7951272
1969	986840661.6884326
1970	1057944364.6147252
1971	1147434114.5711539
1972	1309779712.270361
1973	1548800734.31982
1974	2057735950.3767114
1975	2672112081.521456
1976	2574588977.166414
1977	2705434811.2212963
1978	4246221731.6672454
1979	5388491934.827083
1980	5553260596.0817
1981	7084866864.466916
1982	7137816664.948715
1983	6660070410.050289
1984	7054265878.3338375
1985	7848848301.181802
1986	9892134515.210358
1987	11947178750.02047
1988	13089115979.951448
1989	12317950809.81938
1990	11383818350.652214
1991	10907867592.450861
1992	11566743550.106077
1993	12215595784.406467
1994	11292353851.29879
1995	11352340619.499544
1996	10387100492.147581
1997	10898323126.67967
1998	10859643244.561323
1999	11080228677.901676
2000	10876798935.516905
2001	10682116849.593515
2002	11003908196.87927
2003	13330180003.881395
2004	17076946411.158009
2005	19488520319.21532
2006	21056705024.39784
2007	22495275136.892406
2008	25308097095.85811
2009	27820821905.005043
2010	28541547540.910614
2011	29657442363.67336
2012	30562025543.27135
2013	32724499327.621956
2014	34565250095.00397
2015	34926201164.436745
2016	34412094663.369064
2017	34106364840.415684
2018	37685520423.58594
2019	39762247066.66707
2020	40320016761.802895
2021	43306397153.85385
2022	45419248749.40075
2023	47320053031.27494