Year	current US$
1970	675460000.9918214
1971	660490007.8773506
1972	747029999.7329705
1973	1987949978.5900128
1974	3251070040.2259817
1975	4965719907.045371
1976	4986189914.226532
1977	5851079857.349399
1978	6076029962.5396805
1979	6492389909.505851
1980	7476509955.406179
1981	7112949960.231787
1982	5679300012.707718
1983	4627519963.264471
1984	4500069985.389717
1985	4821519991.39786
1986	4433229955.673218
1987	4933810069.08417
1988	3768040046.691895
1989	3723559965.133673
1990	10985360115.051268
1991	10264059846.878048
1992	6799299927.949911
1993	5304749928.474427
1994	5810619975.32845
1995	4790409900.665281
1996	5104919917.583467
1997	4726769939.899444
1998	4750030026.435855
1999	4331639986.991882
2000	3772879936.2182655
2001	3830769996.6430697
2002	3424669967.651368
2003	6858749916.076664
2004	9082059852.600096
2005	26058119899.749756
2006	13547880346.298223
2007	14457189731.5979
2008	16434810302.734377
2009	7997869934.082033
2010	6964450088.024139
2011	8048189842.224126
2012	10394770088.195803
2013	17089959671.02051
2014	17543759948.730476
2015	16339950271.606462
2016	23118130126.95313
2017	25014159484.863297
2018	28731170288.08595
2019	24275830047.607433
2020	24845969726.562508
2021	31547500457.76367