Year	current US$
1981	3869999.8855590797
1982	1240000.0095367401
1983	1500000
1984	79999.9982118607
1985	1120000.00476837
1986	2369999.8855590797
1987	1590000.0333786
1988	-620000.004768372
1989	-699999.988079071
1990	5570000.17166138
1991	-1470000.02861023
1992	-1490000.0095367401
1993	-319999.99284744303
1994	-219999.998807907
1995	-370000.00476837205
1996	-550000.011920929
1997	-79999.9982118607
1998	-3369999.8855590797
1999	-910000.026226044
2000	1179999.94754791
2001	-300000.011920929
2002	-629999.995231628
2003	-430000.00715255697
2004	-2420000.07629395
2005	-1549999.95231628
2006	-680000.007152557
2007	-360000.01430511504
2008	209999.993443489
2009	-460000.00834465
2010	3950000.04768372
2011	3900000.09536743
2012	2599999.90463257
2013	920000.016689301
2014	1799999.95231628
2015	2256932.0201873803
2016	2068722.00965881
2017	1166783.6904525799
2018	-1084810.01853943
2019	1474489.6888732899
2020	1236501.93214417
2021	-550000.011920929
2022	623120.0098991389