Year	current US$
1970	351369214917.77673
1971	388372594892.25946
1972	479431350016.6967
1973	630554931853.3129
1974	719427522314.3597
1975	789289347630.5869
1976	864568388647.7655
1977	1028329398360.1622
1978	1304203974972.305
1979	1385373827438.727
1980	1473370536124.1467
1981	1625852257873.454
1982	1593854109402.0051
1983	1702876415806.227
1984	1824519539622.2402
1985	1927032136002.948
1986	2522046091630.958
1987	2930921391894.0874
1988	3556810978973.9814
1989	3671787265561.032
1990	3803446680311.992
1991	4279709525699.366
1992	4628732087502.347
1993	5150309856007.435
1994	5849754166515.484
1995	6674606373356.335
1996	6437884749093.625
1997	6098834595831.798
1998	5377392933885.245
1999	6014148366459.594
2000	6515253537411.036
2001	6058704756912.752
2002	6173281969710.916
2003	6836575540894.091
2004	7675960426707.569
2005	8153313178035.557
2006	8653118159382.999
2007	9689260954548.477
2008	11003605728822.807
2009	11401770275688.318
2010	13257717976897.375
2011	15168199831715.38
2012	16463487920745.36
2013	16546310146883.904
2014	17102246969569.367
2015	17021436625548.982
2016	17673228409603.734
2017	18886559240066.98
2018	20278521343258.23
2019	20618048774210.715
2020	20376160339413.07
2021	22953824115778.734