Year	current US$
1970	-15019999.766722275
1971	-11189999.992027879
1972	-2730000.3208219926
1973	35170001.71542166
1974	39459998.68586664
1975	47089999.17656183
1976	49049999.22029669
1977	78650000.46789643
1978	130459999.14221469
1979	164749999.77834523
1980	117490001.49033968
1981	174810002.05874452
1982	182920001.37083226
1983	239250000.77672312
1984	227509997.40883705
1985	222670003.22416434
1986	314869999.8147785
1987	416379999.5034933
1988	396880005.767569
1989	561179998.9938738
1990	557120000.6883593
1991	843540008.4070864
1992	767759997.9974334
1993	732970016.4627289
1994	825729994.9713056
1995	1131600003.436208
1996	980129993.6119471
1997	702959996.2830545
1998	532580000.8773806
1999	797890003.9419544
2000	782879991.0545349
2001	733270012.6171118
2002	586140001.8036368
2003	451950002.2027644
2004	301530001.9085407
2005	398200002.6851891
2006	420029993.20626235
2007	214630000.33795822
2008	255340002.15679404
2009	127180002.95571963
2010	-363679975.19485664
2011	330099997.66759557
2012	-207229995.27864137
2013	-44919998.5191227
2014	1189999.446272779
2015	-34400004.32729707
2016	41580000.1323224
2017	-397699989.8254869
2018	129520000.93460083
2019	130530002.16931105
2020	340770000.81352895
2021	431110000.84131956
2022	643119990.3786185