Year	current US$
1960	2990000.03747642
1961	2450000.04768372
1962	-3740000.00953674
1963	699999.988079071
1964	-3039999.88548458
1965	290000.032633543
1966	9999.99977648258
1967	2320000.02637506
1968	150000.000372529
1969	89999.9998509884
1970	9590000.18984079
1971	16569999.234750899
1972	44369999.874383196
1973	23739999.519661102
1974	-870000.0010430809
1975	12029999.7124821
1976	3379999.79779124
1977	25730000.2500415
1978	6639999.96706843
1979	-1549999.9821186098
1980	-4720000.06400049
1981	-3550000.0249594497
1982	-4619999.84644353
1983	-440000.012516975
1984	10660000.4434586
1985	19629999.6227026
1986	99220001.2356043
1987	67699998.2986599
1988	122970001.474023
1989	114419996.976852
1990	34539999.8575449
1991	40070001.4382601
1992	4779999.97138977
1993	59229999.0039319
1994	10329999.9535084
1995	6109999.93048608
1996	-6290000.11272728
1997	-8210000.12755394
1998	-17149999.221786898
1999	-11649999.8345971
2000	-8439999.74243343
2001	21350000.355392702
2002	10900000.7454306
2003	28709999.807179
2004	-42839996.099472
2005	52779999.0866333
2006	40580000.0671297
2007	69890000.9170175
2008	151219998.471439
2009	103320003.211498
2010	84389999.6578693
2011	99200001.463294
2012	96879999.7866154
2013	86820001.2594461
2014	47780000.2861768
2015	121889999.974519
2016	62780000.4575402
2017	75590001.2943894
2018	137329998.251051
2019	64379999.499768004
2020	49740000.9334087
2021	125800002.854317
2022	148759996.36948103