Year	current US$
1970	564922995.5014554
1971	303645225.24507105
1972	63616881.957259364
1973	646618174.151381
1974	900284893.9929328
1975	-300060045.82444495
1976	485098565.620925
1977	743427691.2829906
1978	190961811.8070691
1979	1989128152.3417394
1980	1220584981.9187407
1981	-116620010.36806636
1982	88427845.44647898
1983	-367426076.2984526
1984	435204593.906884
1985	475191540.3032721
1986	207370887.7872916
1987	-19278406.61732695
1988	982575504.2906498
1989	1743494539.7815912
1990	2215669853.5640807
1991	910051856.2168533
1992	501035562.23390937
1993	-305626404.8266887
1994	45166847.36778702
1995	3529220690.596424
1996	1294983103.7171822
1997	1690066523.847108
1998	1386905291.2405515
1999	2516532664.254832
2000	622034579.5137268
2001	719208423.2204733
2002	240308106.59607887
2003	788475351.3529396
2004	1415411568.0154476
2005	2443803844.7315164
2006	3394988546.964701
2007	6488816077.054923
2008	5145717450.960937
2009	1455622831.1171863
2010	3966385180.666674
2011	7203786020.42803
2012	5436107893.23047
2013	2939032252.521577
2014	3854870870.8195944
2015	4235376842.769529
2016	4591865804.276277
2017	5048353131.847068
2018	7422299094.117641
2019	1934082526.3529382
2020	2822640712.2801633
2021	8783703704.612263
2022	10605073816.36191
2023	4472105417.764785