Year	current US$
1971	2237634277
1972	2722813721
1973	3690343262
1974	4016875000
1975	4095520996
1976	4173704101.9999995
1977	4255071289.0000005
1978	5183325684
1979	5725612305
1980	5818916016
1981	4791845703
1982	4480540527
1983	4289452148.0000005
1984	4038365234
1985	3598019287
1986	4636389160
1987	5534590820
1988	5871227051
1989	5482565430
1990	6542014537.01934
1991	6600992157.63076
1992	8222439487.03941
1993	8176367234.09498
1994	8870751240.83108
1995	10891204294.8411
1996	10518755114.7921
1997	9473507979.14144
1998	9108082670.55018
1999	10088645451.1654
2000	8662856855.46852
2001	9184539370.74823
2002	10126521386.5748
2003	11566286326.8232
2004	12607398368.3622
2005	12705661655.8716
2006	12705044233.7902
2007	14079161786.5639
2008	15236463878.8765
2009	15336343939.8166
2010	14682106066.3781
2011	16125581285.633
2012	15581428609.4726
2013	19976705774.6346
2014	15463161755.2256
2015	14320879460.6063
2016	14685624454.8481
2017	16466277793.4491
2018	18075495506.5018
2019	17778354320.1297
2020	19906133498.3962
2021	22398124791.5584
2022	23086728555.736
2023	24054881466.7616