Year	current US$
1960	42630990.20884653
1961	28682086.612303663
1962	78735632.18390805
1963	121699471.9155065
1964	22548076.923076924
1965	49326923.07692307
1966	170384615.3846154
1967	36442307.69230769
1968	94134615.38461538
1969	149182692.3076923
1970	131538461.53846154
1971	64855769.23076923
1972	-84567189.78612962
1973	489029651.1741397
1974	458108113.61297166
1975	576762591.4354435
1976	183430446.40509903
1977	189116692.20493641
1978	700576703.412645
1979	450121397.1188313
1980	443096483.0504729
1981	587384958.2247252
1982	-155347042.59752432
1983	605692597.3764654
1984	364476733.7063862
1985	419936207.25326484
1986	39659479.07369298
1987	119660397.7265924
1988	1178941402.3424957
1989	322892582.1703066
1990	829142737.3873491
1991	1188432951.7088647
1992	789838539.3963369
1993	762412977.0398132
1994	1331970732.985892
1995	2609293227.549346
1996	1606578119.609514
1997	-505669911.56260484
1998	-2364783597.9774075
1999	-299706539.88072455
2000	894449945.3190873
2001	760354610.0886976
2002	1118200819.1185293
2003	1214281428.7040422
2004	1412943504.2624865
2005	5126984920.237702
2006	365925933.7083806
2007	104553597.42160226
2008	5182884758.253167
2009	-6965454535.166684
2010	4652508126.298594
2011	3541648485.5091705
2012	4096889717.406492
2013	8715885166.445698
2014	-3023968750.08563
2015	-8719559321.282642
2016	-10781161344.492437
2017	-794376845.5281028
2018	12331173418.59509
2019	6755110200.767171
2020	2717290488.719557
2021	25982607856.526794
2022	22145322206.186863
2023	-2064755179.6239026