Year	current US$
1981	259999.990463257
1982	129999.995231628
1983	720000.028610229
1984	550000.011920929
1985	3390000.10490417
1986	2309999.94277954
1987	3240000.00953674
1988	2289999.96185303
1989	3480000.01907349
1990	3079999.92370605
1991	4440000.05722046
1992	1960000.03814697
1993	3109999.89509583
1994	1850000.02384186
1995	1490000.0095367401
1996	3670000.07629395
1997	2789999.96185303
1998	460000.00834465
1999	360000.01430511504
2000	419999.986886978
2001	-759999.990463257
2002	-980000.019073486
2003	1480000.01907349
2004	460000.00834465
2005	600000.023841858
2006	209999.993443489
2007	-349999.99403953605
2008	959999.978542328
2009	1149999.97615814
2010	100000.00149011599
2011	970000.028610229
2012	1100000.02384186
2013	1299999.95231628
2014	1720000.02861023
2015	3777870.89347839
2016	4517248.15368652
2017	10187236.7858887
2018	3084120.5120086703
2019	1270928.26366425
2020	-1280299.78275299
2021	-1695000.05245209
2022	850629.985332489