Year	current US$
1987	2200000.04768372
1988	1200000.04768372
1989	2700000.04768372
1990	1129999.99523163
1991	1850000.02384186
1992	9130000.11444092
1993	1250000
1994	460000.00834465
1995	8090000.152587891
1996	7030000.20980835
1997	9729999.54223633
1998	5469999.79019165
1999	1129999.99523163
2000	1750000
2001	6210000.03814697
2002	7369999.88555908
2003	12560000.4196167
2004	9710000.03814697
2005	5630000.11444092
2006	15850000.3814697
2007	21260000.2288818
2008	16190000.534057599
2009	124139999.38964799
2010	158029998.779297
2011	82860000.6103516
2012	519999.980926514
2013	25180000.3051758
2014	-829999.983310699
2015	-2349999.90463257
2016	-1149999.97615814
2017	-3299999.95231628
2018	-1659999.9666214
2019	1389999.98569489
2020	-12010000.2288818
2021	-17059999.4659424
2022	-15500000