Year	current US$
1981	529999.971389771
1982	500000
1983	319999.99284744303
1984	469999.998807907
1985	180000.00715255702
1991	219999.998807907
1992	740000.009536743
1993	1230000.01907349
1994	2609999.89509583
1995	980000.019073486
1996	449999.988079071
1997	-50000.0007450581
1998	-189999.99761581398
1999	-180000.00715255702
2000	529999.971389771
2001	-39999.9991059303
2002	750000
2003	449999.988079071
2004	569999.992847443
2005	159999.99642372102
2006	340000.00357627904
2007	649999.976158142
2008	740000.009536743
2009	1539999.96185303
2010	970000.028610229
2011	519999.980926514
2012	860000.014305115
2013	1730000.01907349
2014	-600000.023841858
2015	720987.021923065
2016	1044000.38719177
2017	1437730.90839386
2018	1941579.5803070099
2019	1748270.8692550699
2020	654424.667358398
2021	2569000.00572205
2022	1047970.0565338099