Year	current US$
1970	-639624435.464701
1971	61765269.46107785
1972	-297196479.4201398
1973	-1151373500.8566532
1974	-5181026824.343813
1975	-4974834782.608696
1976	-5858711763.242976
1977	-3523023001.09529
1978	54388020.833333336
1979	-917828458.1060982
1980	-6934168020.422372
1981	-5705559560.281133
1982	-5045353627.139179
1983	-2765796983.758701
1984	1832360794.8664913
1985	1559987279.843444
1986	2632107639.301414
1987	-2773981943.1343484
1988	-7929114412.226826
1989	-17334475052.70555
1990	-22326937642.83382
1991	-22839052041.633305
1992	-22730290915.000813
1993	-8044782324.486861
1994	-5423452987.206558
1995	-6890846010.141447
1996	-1159858137.3965585
1997	1022727272.7272727
1998	-2833277647.8449717
1999	-12275613126.640953
2000	-17685333088.627487
2001	-14276334669.291355
2002	-14112687852.941202
2003	-20018145459.999958
2004	-39557337570.27037
2005	-55421733453.69647
2006	-71773795549.41167
2007	-85169728225.09831
2008	-77276433839.06248
2009	-12997977389.453115
2010	-14574929033.33336
2011	4097916264.591448
2012	27358289978.906258
2013	53241595956.07858
2014	42494754587.84299
2015	36345423271.093735
2016	49157567241.245255
2017	47330252250.58832
2018	38601860061.960754
2019	40991798125.49013
2020	18392783942.412502
2021	13900746864.340862
2022	17178382433.852207
2023	65179954131.3737