Year	current US$
1980	11779999.7329712
1981	-959999.978542328
1982	-409999.99642372096
1983	-519999.980926514
1984	-50000.0007450581
1985	3099999.90463257
1986	5110000.1335144
1987	3529999.97138977
1990	3200000.04768372
1991	200000.00298023198
1992	0
1993	-3380000.1144409203
1994	-300000.011920929
1995	-479999.989271164
1996	-870000.004768372
1997	680000.007152557
1998	1750000
1999	1580000.04291534
2000	3690000.05722046
2001	2410000.08583069
2002	1269999.98092651
2003	1090000.0333786
2004	1100000.02384186
2005	430000.00715255697
2006	1629999.99523163
2007	6349999.90463257
2008	5289999.96185303
2009	1870000.00476837
2010	3569999.9332428
2011	6269999.98092651
2012	4869999.88555908
2013	2839999.91416931
2014	6960000.03814697
2015	4434834.00344849
2016	3619368.31474304
2017	8651322.36480713
2018	4169909.95407104
2019	4672651.29089355
2020	6320139.4081115695
2021	2079999.9237060498
2022	1489480.01861572