Year	current US$
1960	1514648437.4814398
1961	1448216488.469096
1962	918089535.350592
1963	589915707.2296134
1964	172723067.432094
1965	1202418277.1234238
1966	664319490.1234385
1967	442436780.42221004
1968	216568153.78024095
1969	-565763440.620638
1970	806661155.0726349
1971	1583994317.5091748
1972	1578673602.080624
1973	1703005303.4767237
1974	-3127386797.5995636
1975	3516903778.491663
1976	-3460803059.2734227
1977	-692698582.5086921
1978	5305232558.139535
1979	2445266728.337959
1980	-10783918037.876436
1981	-9056125528.062763
1982	-14358718434.97355
1983	-1495825802.5647647
1984	685281092.8469564
1985	-2034603591.7652214
1986	-933800549.2944407
1987	-10257557568.481937
1988	-6711815879.308446
1989	-7027555007.197204
1990	-9957836405.25238
1991	-3984420416.230671
1992	9382899628.252787
1993	22223766504.51703
1994	20831758034.026463
1995	25613089762.1238
1996	28612642646.493137
1997	43773881771.18453
1998	41278630197.90972
1999	35718431874.131355
2000	18145292138.039253
2001	21662591383.070892
2002	29879184151.76476
2003	26305134919.607788
2004	21464778375.28963
2005	1876088130.7392988
2006	-5414142127.058816
2007	-19003048491.764767
2008	-33942094707.812492
2009	-21373645832.812485
2010	-34154438483.3334
2011	-55810445865.758865
2012	-34780514136.32813
2013	-29091097530.980473
2014	-32713003312.941063
2015	-13816764026.953117
2016	-14963116279.377468
2017	-27627482851.764755
2018	-28205917512.15684
2019	-26125176635.294075
2020	-56302272798.44373
2021	-55704703124.03011
2022	-107746883605.05879
2023	-67233283254.903145