Year	current US$
1987	1200000.04768372
1988	1600000.02384186
1989	1350000.02384186
1990	12390000.3433228
1991	46009998.3215332
1992	73639999.3896484
1993	42240001.6784668
1994	28520000.4577637
1995	37970001.220703095
1996	34139999.3896484
1997	16780000.6866455
1998	-5900000.09536743
1999	-9239999.77111816
2000	-6480000.01907349
2001	-3910000.08583069
2002	9859999.65667725
2003	41159999.8474121
2004	33389999.3896484
2005	12329999.923706101
2006	13829999.923706101
2007	21629999.1607666
2008	29670000.0762939
2009	24139999.3896484
2010	22959999.084472697
2011	2519999.98092651
2012	-1029999.97138977
2013	-16229999.5422363
2014	-2309999.94277954
2015	-84150001.5258789
2016	-17139999.3896484
2017	-14479999.5422363
2018	-11920000.076293899
2019	-6480000.01907349
2020	-5760000.228881841
2021	8319999.694824221
2022	-6130000.11444092