Year	current US$
1970	12930000.124499211
1971	13770000.036805876
1972	18800000.118091706
1973	30829999.802634124
1974	44180000.21390612
1975	50339999.28273265
1976	49010000.096634045
1977	71359998.45527112
1978	95100000.28274956
1979	116069998.76722695
1980	146359996.70252198
1981	96339999.24361706
1982	100659999.75986782
1983	117700001.32545827
1984	104600001.41337517
1985	128880000.80175704
1986	178050002.1614134
1987	206499998.70732424
1988	281029997.98581
1989	286350001.19358295
1990	320010000.90315944
1991	340499997.5413083
1992	331999996.3659793
1993	350560001.31741166
1994	351670003.0658395
1995	394960002.50987697
1996	479370001.8171219
1997	408899998.99826956
1998	469189998.0287999
1999	482199998.84627736
2000	433260000.2158435
2001	465069996.8729168
2002	461710000.1927466
2003	540480002.1164118
2004	602939998.5615165
2005	680010005.8466195
2006	734179985.0221723
2007	837159991.4524702
2008	882910003.7794566
2009	960210001.5822793
2010	958970001.2225652
2011	960429999.5526668
2012	851620010.1729479
2013	749039992.9787965
2014	721380001.3922156
2015	471609997.9933349
2016	496889998.9612401
2017	534039998.2407687
2018	551080004.7628578
2019	600809999.4119258
2020	534670005.2004306
2021	709900006.0297551
2022	456389994.67901886