Year	current US$
1981	19999.9995529652
1982	50000.0007450581
1984	90000.0035762787
1985	300000.011920929
1986	689999.997615814
1987	740000.009536743
1988	4090000.1525878897
1989	1659999.9666214
1990	5530000.20980835
1991	1320000.05245209
1992	439999.997615814
1993	-9999.99977648258
1994	-270000.010728836
1995	519999.980926514
1996	-140000.000596046
1997	310000.002384186
1998	-59999.9986588955
1999	109999.999403954
2000	159999.99642372102
2001	319999.99284744303
2002	3789999.96185303
2003	6719999.79019165
2004	2670000.07629395
2005	310000.002384186
2006	409999.99642372096
2007	1279999.97138977
2008	930000.007152557
2009	50000.0007450581
2010	379999.99523162795
2011	349999.99403953605
2014	189999.99761581398
2015	19999.9995529652
2016	59999.9986588955
2017	219999.998807907
2018	140000.000596046
2019	29999.999329447703
2020	-300000.011920929
2021	-620000.004768372
2022	59999.9986588955