Year	current US$
1991	29999.999329447703
1992	19999.9995529652
1993	19999.9995529652
1994	19999.9995529652
1995	50000.0007450581
1996	19999.9995529652
1997	19999.9995529652
1998	9999.99977648258
1999	19999.9995529652
2001	9999.99977648258
2002	100000.00149011599
2003	9999.99977648258
2004	39999.9991059303
2005	100000.00149011599
2006	209999.993443489
2007	70000.0002980232
2010	9999.99977648258
2011	19999.9995529652
2012	270000.010728836
2013	119999.997317791
2014	129999.995231628
2015	189999.99761581398
2016	79999.9982118607
2017	50000.0007450581
2018	90000.0035762787