Year	current US$
1970	439212507.675078
1971	435121443.168957
1972	535186184.219938
1973	772908519.768991
1974	915771544.517808
1975	992848191.333815
1976	1112907245.88242
1977	1307330613.69842
1978	1630204025.05252
1979	2080011900.19991
1980	2415921473.20946
1981	2617234902.2975
1982	2993051962.40349
1983	3523295248.34323
1984	4020336621.70159
1985	4232270752.01061
1986	4320664720.71313
1987	4735060772.9978
1988	4816248397.7777
1989	5018434315.58274
1990	5593970881.81431
1991	6407523808.42339
1992	8048193043.19685
1993	9479112593.00402
1994	10969703388.3023
1995	13512825125.3905
1996	16375757516.0358
1997	17106494059.0305
1998	15625293758.5027
1999	16343562548.34
2000	16495595538.9867
2001	16868570369.4569
2002	17556733865.1546
2003	18653906077.0284
2004	19810461400.3641
2005	21629189029.1042
2006	24967083331.8363
2007	29087710764.3642
2008	34315826350.27
2009	34022770273.1305
2010	43077866903.2012
2011	48654660544.7382
2012	51437781161.8405
2013	55043127807.1557
2014	60819831273.6091
2015	57040305321.1163
2016	59220574821.7517
2017	63512719755.139
2018	72570180797.8558
2019	73999883591.4492
2020	69040642346.8382
2021	77089239497.0827