Year	current US$
1970	45319999.11740417
1971	44389998.950064205
1972	7119999.792426825
1973	17549999.69154597
1974	33869999.56145884
1975	53880000.2206117
1976	45910000.66883868
1977	42559999.063610986
1978	66729999.36155969
1979	209779996.0840497
1980	146459998.19599062
1981	152830000.4787742
1982	134609999.55236915
1983	161299997.869879
1984	130719999.13640322
1985	147709997.84581372
1986	247239998.59765193
1987	260650002.63228995
1988	587259999.2007015
1989	569049990.676344
1990	449549998.8198283
1991	468080005.15401435
1992	523099997.4906443
1993	437690009.96649224
1994	475770000.8824467
1995	619339994.4901465
1996	586999988.0194663
1997	370370001.5470387
1998	749720010.5041262
1999	499399992.2648073
2000	641009980.9840328
2001	427370003.1489129
2002	465789995.31269133
2003	401700004.0784476
2004	382180000.3647809
2005	331970002.7555228
2006	2033779988.8551211
2007	244150000.70631504
2008	124840003.19242492
2009	299279992.16318095
2010	440759999.632835
2011	797319976.7470357
2012	525429991.1633142
2013	613059999.7937682
2014	447140005.58853155
2015	572720005.8996671
2016	618329987.2875211
2017	401229997.7391957
2018	339900011.8374831
2019	668779993.7054508
2020	686380014.5983696
2021	1249660008.788109
2022	324779996.94086576