Year	current US$
1960	14046687.26847466
1961	3920005.7493417654
1962	13066685.831139218
1971	-4259139.129694063
1972	-53199865.51073999
1973	84720443.00196862
1974	296626558.3799703
1975	-158644237.1752165
1976	-27935433.736954447
1977	100354164.88067403
1978	312170504.6799669
1979	535997755.4808397
1980	-174561517.54595906
1981	-261270547.38783702
1982	262482700.9769666
1983	539795368.8745288
1984	557252344.8547176
1985	-707599790.901644
1986	-101106280.9081126
1987	322268516.3503646
1988	620135383.496838
1989	308249798.25327575
1990	-300568418.13392484
1991	704829793.4244981
1992	-748419523.3046688
1993	207840036.98387203
1994	712543819.5397043
1995	47846889.95215311
1996	-1025121233.802369
1997	-141244942.86322662
1998	-108795352.62943335
1999	388421052.631579
2000	1477631578.9473684
2001	-672894736.8421053
2002	1303947368.4210527
2003	384736842.1052632
2004	2613157894.736842
2005	133347697.91702974
2006	1217771116.2792854
2007	1945851850.5374002
2008	2049563032.6817918
2009	-8374797808.371846
2010	2425578694.397264
2011	2994768305.7827067
2012	1211149569.039896
2013	-1745528036.512638
2014	-3370141099.8331733
2015	-1330122642.6157613
2016	1439172902.7688751
2017	1545694732.2379262
2018	-1087290372.3052294
2019	-6896549401.685468
2020	-4238476815.173706
2021	10613388619.444185
2022	21542624946.234703
2023	13219715115.52969