Year	current US$
1980	3839999.91416931
1981	3039999.96185303
1982	1429999.94754791
1983	349999.99403953605
1984	990000.009536743
1985	140000.000596046
1986	990000.009536743
1987	990000.009536743
1988	1190000.0572204601
1989	2220000.02861023
1990	1700000.04768372
1991	2009999.9904632599
1992	990000.009536743
1993	449999.988079071
1994	5329999.92370605
1995	31229999.5422363
1996	23399999.6185303
1997	11300000.1907349
1998	3930000.0667572
1999	11000000
2000	2089999.9141693101
2001	14479999.5422363
2002	4730000.01907349
2003	6849999.90463257
2004	-589999.973773956
2005	109999.999403954
2006	-910000.026226044
2007	4420000.07629395
2008	14970000.2670288
2009	16170000.076293899
2010	23610000.6103516
2011	19459999.084472697
2012	24329999.9237061
2013	12600000.3814697
2014	3109999.89509583
2015	4480000.01907349
2016	12279999.7329712
2017	8430000.30517578
2018	4070000.1716613797
2019	2400000.09536743
2020	519999.980926514
2021	3650000.09536743
2022	7119999.88555908