Year	current US$
1981	90000.0035762787
1983	370000.00476837205
1984	340000.00357627904
1985	280000.001192093
1986	119999.997317791
1987	189999.99761581398
1989	289999.99165535
1990	189999.99761581398
1991	310000.002384186
1992	19999.9995529652
1993	100000.00149011599
1994	-29999.999329447703
1995	-39999.9991059303
1996	-140000.000596046
1998	-59999.9986588955
1999	-59999.9986588955
2000	-59999.9986588955
2001	-439999.997615814
2002	-70000.0002980232
2003	-90000.0035762787
2004	-39999.9991059303
2005	-70000.0002980232
2006	270000.010728836
2007	3349999.90463257
2008	810000.002384186
2009	759999.990463257
2010	720000.028610229
2011	2220000.02861023
2012	1370000.00476837
2013	1570000.05245209
2014	699999.988079071
2015	1024587.9888534499
2016	862338.185310364
2017	1646230.10158539
2018	2343462.94403076
2019	5968274.11651611
2020	2227121.35314941
2021	2010999.9179840102
2022	1540619.96936798