Year	current US$
1970	12880000.146105897
1971	14849999.988451606
1972	19630000.26158989
1973	26119999.846443538
1974	37240000.11943276
1975	48519998.650997914
1976	51760000.50455334
1977	70229997.75782223
1978	80640000.05461276
1979	97809999.59260225
1980	118079996.84847881
1981	84129999.19615686
1982	103319998.55674806
1983	102870001.07392672
1984	107390000.6040932
1985	95779999.48523943
1986	175330000.87924296
1987	177559999.1269409
1988	219909996.05134133
1989	225749999.27915627
1990	241360003.38196763
1991	254859996.68389544
1992	257029998.5073506
1993	251610000.48182896
1994	255950000.26188794
1995	270680000.6497652
1996	343779998.22981644
1997	276550001.95465994
1998	315619996.18262064
1999	330439998.941496
2000	307570001.51835394
2001	319489998.17483133
2002	308829999.92370605
2003	345290000.43123966
2004	420879998.3318896
2005	500060005.7542323
2006	644209995.4616277
2007	777659997.0981475
2008	769060001.4738743
2009	758870004.3819841
2010	716340005.0252671
2011	756600001.4171
2012	651660008.0057974
2013	551909997.632727
2014	559319999.7358025
2015	395839998.3942508
2016	409829996.1835145
2017	398069996.87105405
2018	373920004.56154335
2019	393810001.2093783
2020	446450004.2982397
2021	544790002.6850405
2022	343989998.86401