Year	current US$
1981	469999.998807907
1982	1940000.0572204601
1983	5960000.03814697
1984	3640000.10490417
1985	8369999.88555908
1986	9000000
1987	11880000.1144409
1988	3779999.97138977
1989	4349999.90463257
1990	5070000.17166138
1991	2170000.07629395
1992	1110000.01430511
1993	-479999.989271164
1994	-389999.98569488496
1995	569999.992847443
1996	920000.016689301
1997	-400000.00596046395
1998	-620000.004768372
1999	899999.976158142
2000	3140000.10490417
2001	3930000.0667572
2002	5050000.19073486
2003	8680000.30517578
2004	8000000
2005	12710000.038146999
2006	16299999.2370605
2007	29579999.9237061
2008	3809999.94277954
2009	-1090000.0333786
2010	13369999.8855591
2011	8210000.038146971
2012	62200000.762939505
2013	55159999.8474121
2014	31530000.6866455
2015	22876054.7637939
2016	33966331.4819336
2017	53801502.2277832
2018	41780162.8112793
2019	34574302.6733398
2020	15740157.127380399
2021	31656000.1373291
2022	36257019.0429688