Year	current US$
1981	750000
1982	349999.99403953605
1983	1080000.04291534
1984	2390000.10490417
1985	3349999.90463257
1986	4750000
1987	4449999.80926514
1988	340000.00357627904
1989	3039999.96185303
1990	2960000.03814697
1991	2289999.96185303
1992	159999.99642372102
1993	59999.9986588955
1994	-9999.99977648258
2003	-1220000.02861023
2005	1340000.0333786
2006	-2890000.10490417
2007	829999.983310699
2008	25690000.5340576
2009	3279999.97138977
2010	3170000.07629395
2011	7530000.20980835
2012	9699999.80926514
2013	6650000.09536743
2014	6300000.19073486
2015	8371849.06005859
2016	-1059405.2076339698
2017	-1661663.53225708
2018	5810984.1346740695
2019	26390491.4855957
2020	26978101.730346702
2021	4861999.98855591
2022	5405379.77218628