Year	current US$
1960	243040038.8864062
1961	561120089.7792144
1962	-272160043.545607
1963	272160043.545607
1964	152320024.3712039
1965	632800101.2480162
1966	94080015.05280241
1967	452480072.3968116
1968	164640026.34240422
1969	825440132.0704211
1970	621600099.456016
1971	657440105.1904168
1972	184579439.25233644
1973	-435618193.4657271
1974	1857037582.9034636
1975	932677864.2632802
1976	226888277.69108406
1977	1300757054.3702683
1978	-595514691.6181307
1979	1576735203.9077587
1980	1018384401.1142062
1981	496923255.54394525
1982	1710250468.9396448
1983	-2212401803.612841
1984	1151047081.53869
1985	1780329848.1005085
1986	618354784.5551203
1987	-1096479618.8459501
1988	486755024.70882004
1989	2732658691.2551665
1990	3991495275.5378366
1991	-1135684915.3259385
1992	-1604247641.6944425
1993	363265879.70770097
1994	989277066.758907
1995	3308583308.5833087
1996	2568283332.1067286
1997	3561584658.6560354
1998	1939225395.1027608
1999	3004135856.6236367
2000	1301870724.8022387
2001	722334740.4371145
2002	444214924.6796708
2003	-529994175.88817704
2004	2661829563.238014
2005	3101684276.2047596
2006	-2127885785.9924917
2007	887179084.556803
2008	4136249120.3755927
2009	-2205867194.425547
2010	-2863459404.2313313
2011	6161123889.957536
2012	4747556616.984373
2013	450380669.1282005
2014	-2169348745.532546
2015	753787031.0358914
2016	778879694.3879898
2017	1403523061.5958834
2018	2411403590.363687
2019	-346872320.232526
2020	-5106750389.307599
2021	4663142441.537195
2022	9368063834.31058
2023	5712824240.466287