Year	current US$
1974	663878579.9442915
1975	805001845.1130353
1976	785339799.3977938
1977	992165334.172337
1978	1285382747.6527603
1979	2017874211.0314736
1980	2864645939.9719357
1981	2767644985.5395703
1982	3180622808.872401
1983	3871620895.3048267
1984	4155925430.328708
1985	3814273488.496967
1986	3417857592.49514
1987	3415966444.919678
1988	4025533485.6517353
1989	4603812822.82402
1990	5393964600.951986
1991	6454752612.057877
1992	7248222031.758089
1993	9370672022.594349
1994	11918041553.354172
1995	14821489476.03972
1996	17405803193.03795
1997	18114656247.500553
1998	12972511546.424593
1999	14621447368.421015
2000	16602631578.947388
2001	16538684210.526295
2002	16248263157.89478
2003	17323078947.36843
2004	18966857894.7368
2005	21750490737.090916
2006	23421359080.998096
2007	28475423649.618557
2008	30060256452.20058
2009	27256790946.759056
2010	32400464699.183388
2011	38082729361.83446
2012	43130821997.57391
2013	44973439125.69289
2014	45128381966.36321
2015	39922713736.63448
2016	39896135598.05958
2017	42022247442.241516
2018	44335870140.63829
2019	43453145307.101
2020	33155334154.777905
2021	36784611328.903244
2022	45010840470.9776
2023	52196494545.006