Year	current US$
1988	170000.00178813902
1989	119999.997317791
1990	140000.000596046
1991	50000.0007450581
1997	289999.99165535
2000	1429999.94754791
2001	3480000.01907349
2002	3980000.01907349
2003	4219999.79019165
2004	9029999.73297119
2005	779999.971389771
2006	1009999.99046326
2007	1820000.05245209
2008	1610000.01430511
2009	1340000.0333786
2010	439999.997615814
2011	430000.00715255697
2012	370000.00476837205
2013	400000.00596046395
2014	1019999.98092651
2015	449999.988079071
2016	19999.9995529652
2017	209999.993443489
2018	100000.00149011599
2019	239999.994635582
2020	90000.0035762787
2021	19999.9995529652
2022	29999.999329447703