Year	current US$
1970	1400867148.2919
1971	4050961448.0186
1972	4800562874.3266
1973	6431468298.5163
1974	7455824099.0908985
1975	11909587556.214003
1976	12970602510.526701
1977	17454646980.2893
1978	22826658510.085514
1979	26280182305.5902
1980	30206296631.9598
1981	33433043829.204407
1982	34307562900.229286
1983	33890397655.99561
1984	32797985284.426994
1985	32773412420.1277
1986	38811813384.53349
1987	45102499106.3538
1988	50016794504.43919
1989	54620582882.74192
1990	65248227353.553665
1991	70500349683.04736
1992	77573374929.38922
1993	80933158921.8768
1994	85168670570.36331
1995	96283264490.8089
1996	99063400345.51535
1997	98816457121.05873
1998	102026661490.39658
1999	113019498816.7119
2000	115873102907.07715
2001	124836187299.68379
2002	139198086080.95795
2003	153083552088.1407
2004	174547441816.66254
2005	190376054138.2862
2006	216892279276.81528
2007	260996390239.22922
2008	318543247322.8725
2009	305808046763.7853
2010	313090935715.4292
2011	353112170106.62366
2012	365759259608.5911
2013	400387850760.3378
2014	407143422743.80255
2015	384745836872.099
2016	387052934389.0133
2017	418835878708.45013
2018	441861236486.1427
2019	454333905774.44305
2020	434013267882.6162
2021	474624564200.736
2022	477868280325.42017