Year	current US$
1970	9590000.189840801
1971	16569999.234750822
1972	44369999.87438321
1973	23739999.519661028
1974	-870000.0010430813
1975	12029999.712482091
1976	3379999.7977912496
1977	25730000.25004144
1978	6639999.967068424
1979	-1549999.9821186059
1980	-4720000.064000476
1981	-3550000.024959446
1982	-4619999.846443532
1983	-440000.01251697406
1984	10660000.443458585
1985	19629999.622702602
1986	99220001.23560426
1987	67699998.2986599
1988	122970001.47402282
1989	114419996.97685245
1990	34539999.857544854
1991	40070001.438260086
1992	4779999.9713897705
1993	59229999.00393178
1994	10329999.953508392
1995	6109999.930486079
1996	-6290000.112727283
1997	-8210000.127553947
1998	-17149999.22178681
1999	-11649999.834597101
2000	-8439999.742433475
2001	21350000.35539273
2002	10900000.745430633
2003	28709999.807178993
2004	-42839996.09947212
2005	52779999.086633265
2006	40580000.06712973
2007	69890000.91701742
2008	151219998.47143918
2009	103190003.2162667
2010	84389999.65786937
2011	99090001.46389008
2012	96879999.78661537
2013	86710001.26004216
2014	47780000.28617676
2015	121889999.97451879
2016	62780000.45754013
2017	75580001.29461285
2018	137309998.25149763
2019	64259999.50245027
2020	49720000.93385573
2021	125680002.85699967
2022	148759996.36948103