Year	current US$
1968	19999.9995529652
1970	29999.999329447703
1971	29999.999329447703
1972	70000.0002980232
1973	189999.99761581398
1974	170000.00178813902
1975	209999.993443489
1976	79999.9982118607
1977	129999.995231628
1978	310000.002384186
1979	340000.00357627904
1980	409999.99642372096
1981	409999.99642372096
1982	379999.99523162795
1983	670000.016689301
1984	1019999.98092651
1985	1450000.04768372
1986	1370000.00476837
1987	7969999.79019165
1988	7579999.92370605
1989	3099999.90463257
1990	23469999.3133545
1991	-2309999.94277954
1992	-2980000.01907349
1993	4530000.20980835
1994	-3140000.10490417
1995	-18670000.0762939
1996	-18079999.9237061
1997	-15340000.1525879
1998	730000.019073486
1999	-9909999.84741211
2000	-2799999.95231628
2001	-1149999.97615814
2002	1440000.0572204601
2003	-400000.00596046395
2004	-1340000.0333786
2005	-939999.997615814
2006	-119999.997317791
2007	-119999.997317791
2008	750000
2009	540000.021457672
2010	-209999.993443489
2011	-170000.00178813902
2012	-159999.99642372102
2013	70000.0002980232
2014	50000.0007450581
2015	-600000.023841858
2016	430000.00715255697
2017	699999.988079071
2018	1250000
2019	1809999.9427795399
2020	-1220000.02861023
2021	3930000.0667572
2022	3980000.01907349