Year	current US$
1981	-1089508866.6666667
1982	-974987233.3333334
1983	-976184300
1984	-753278150
1985	-906893375
1986	-1483275100
1987	-1252314200
1988	-1204029033.3333333
1989	-1122831166.6666667
1990	-565229200
1991	-677232000
1992	-97894086.85446009
1993	-85121072.89908881
1994	-91618008.33494863
1995	-14825363.23309779
1996	-93196784.84618063
1997	63076543.7537184
1998	-131156749.21006735
1999	-126090235.8230222
2000	-157950192.9142455
2001	-192502943.66161898
2002	-238308563.52653193
2003	-248791319.97139218
2004	-194301582.74838012
2005	-122203964.99134232
2006	203359832.07488355
2007	57107719.09541182
2008	-740236948.4754124
2009	-332684790.1821887
2010	-718377821.5551394
2011	-2278925181.9657006
2012	-2759021641.4502277
2013	-2834942804.037594
2014	-589845518.5981991
2015	-149381040.76739547
2016	77056377.13734594
2017	275592774.91584367
2018	-1321276455.829401
2019	-846989980.5927477
2020	330435100.3706662
2021	-305782418.25460005
2022	-1063977600.8305855
2023	1746227412.856059