Year	current US$
1968	9999.99977648258
1969	39999.9991059303
1970	50000.0007450581
1971	79999.9982118607
1972	90000.0035762787
1973	300000.011920929
1974	270000.010728836
1975	270000.010728836
1976	310000.002384186
1977	189999.99761581398
1978	200000.00298023198
1979	170000.00178813902
1980	300000.011920929
1981	360000.01430511504
1982	1600000.02384186
1983	1399999.97615814
1984	2029999.97138977
1985	2410000.08583069
1986	1690000.0572204601
1987	3140000.10490417
1988	2880000.1144409203
1989	2690000.05722046
1990	1889999.98569489
1991	2630000.1144409203
1992	3369999.8855590797
1993	3500000
1994	2710000.03814697
1995	2980000.01907349
1996	1899999.97615814
1997	1590000.0333786
1998	170000.00178813902
1999	-189999.99761581398
2000	90000.0035762787
2001	-400000.00596046395
2002	9999.99977648258
2003	70000.0002980232
2004	500000
2005	19999.9995529652
2006	-159999.99642372102
2007	-509999.99046325695
2008	-439999.997615814
2009	-980000.019073486
2010	-90000.0035762787
2011	-649999.976158142
2012	-529999.971389771
2013	-379999.99523162795
2014	-400000.00596046395
2015	-340000.00357627904
2016	-259999.990463257
2017	-180000.00715255702
2020	109999.999403954