Year	current US$
1970	66197316.19731619
1971	11523572.249904176
1972	74754130.60582219
1973	101068879.0275902
1974	311288897.07236236
1975	45001742.16027875
1976	24218794.225870363
1977	315691715.8950405
1978	170155542.1322863
1979	405098323.6621535
1980	-178737659.81550413
1981	-266249207.7576372
1982	228381399.50816008
1983	113805422.33532347
1984	228758750.21341985
1985	164596485.38352627
1986	179746714.7096227
1987	-1470037.4531835206
1988	-256583083.38332334
1989	233394352.04821965
1990	1096008857.626677
1991	996572442.6416528
1992	-322369020.501139
1993	-192290964.065589
1994	-223137809.18727916
1995	554123737.3737373
1996	539178427.4193549
1997	979866284.6227316
1998	1418196702.9269934
1999	470369777.50579256
2000	767492472.6337271
2001	349746017.40039414
2002	629491122.8282365
2003	1371955029.4768598
2004	520940070.68146855
2005	1018754421.7898828
2006	2104749007.4929383
2007	1461191351.1094165
2008	-482101876.6124999
2009	-2032124065.2035143
2010	-665263183.366668
2011	1299760488.6965005
2012	873735953.7726564
2013	218642760.3239222
2014	4648518567.869395
2015	5444934510.742185
2016	4637782359.203125
2017	5428019770.678833
2018	1085719976.224313
2019	1996691377.2627418
2020	4211438103.3478713
2021	6558636831.329352
2022	11101930596.145958
2023	17365617477.000305