Year	current US$
1970	836540005.2089248
1971	1051439999.243244
1972	1439070005.5658815
1973	2022179988.2892513
1974	3182080026.3378754
1975	4232020019.758496
1976	3631590019.8817263
1977	4469449985.802173
1978	5844500011.244792
1979	7307620016.306643
1980	8527940088.987352
1981	8067390020.370485
1982	8505839892.372492
1983	7929179930.8657675
1984	8141250062.46567
1985	9099999915.122986
1986	10981579922.020443
1987	12777649963.378906
1988	13415219947.356731
1989	13484749961.853031
1990	16026389898.397026
1991	15829779920.04157
1992	16405229995.608343
1993	14873229864.984758
1994	16036949898.228054
1995	16400450067.538767
1996	13293620028.570297
1997	12460339995.086193
1998	12085879884.123808
1999	11897560007.572178
2000	12004440017.22336
2001	13623960023.880007
2002	17286090199.470528
2003	23777659869.67088
2004	25301860013.008137
2005	25511960132.598892
2006	28286939935.684208
2007	34138690054.89351
2008	38266739719.390884
2009	39604650014.87735
2010	43490309619.90357
2011	44448710067.74904
2012	43007670089.7217
2013	47812710323.33377
2014	43848160087.585464
2015	43251279693.60354
2016	43409390375.13737
2017	48837959821.70109
2018	54195220167.16006
2019	52987779647.8272
2020	64458440105.43828
2021	60834359786.98736