Year	current US$
1997	3950000.04768372
1998	2490000.00953674
1999	2130000.1144409203
2000	2720000.02861023
2001	7880000.11444092
2002	430000.00715255697
2003	1909999.9666214
2004	2720000.02861023
2005	1139999.98569489
2006	720000.028610229
2007	759999.990463257
2008	550000.011920929
2009	4420000.07629395
2010	1320000.05245209
2011	59999.9986588955
2012	289999.99165535
2013	400000.00596046395
2014	-980000.019073486
2015	1840000.0333786
2016	469999.998807907
2017	-50000.0007450581
2018	-59999.9986588955
2019	29999.999329447703
2020	-1610000.01430511
2021	70000.0002980232
2022	0