Year	current US$
1975	-629999.995231628
1979	400000.00596046395
1980	2150000.013411045
1981	1570000.0002980237
1982	2759999.9532103497
1983	1330000.0112503762
1984	3369999.924674629
1985	2529999.982565642
1986	1209999.959915876
1987	2300000.011920931
1988	930000.0108778479
1989	3729999.946430319
1990	5870000.01594425
1991	16930000.15057623
1992	18759999.82841312
1993	12529999.969527125
1994	14520000.299438834
1995	13519999.867305152
1996	14629999.917000532
1997	6559999.819844965
1998	4390000.075101857
1999	10000.04820525687
2000	3439999.8858571067
2001	1070000.0375509255
2002	4989999.90709126
2003	3560000.06198883
2004	6479999.963194143
2005	6380000.01013279
2006	3249999.9627471007
2007	7879999.9114125855
2008	-1939999.9752640775
2009	-1020000.0610202462
2010	-399999.88861382287
2011	12970000.14036888
2012	27830000.05781646
2013	530000.2340227515
2014	10910000.104457136
2015	1400000.1251697568
2016	-3940000.085160132
2017	-2819999.9537318926
2018	8209999.589249533
2019	28059998.862445384
2020	-1400000.0674277612
2021	140000.07882714507
2022	37249998.843297385