Year	current US$
1981	9999.99977648258
1982	29999.999329447703
1986	29999.999329447703
1987	29999.999329447703
1988	19999.9995529652
1989	159999.99642372102
1990	90000.0035762787
1991	29999.999329447703
1992	29999.999329447703
1993	9999.99977648258
1994	50000.0007450581
1995	9999.99977648258
1997	39999.9991059303
1998	9999.99977648258
1999	9999.99977648258
2003	9999.99977648258
2004	9999.99977648258
2008	9999.99977648258
2010	9999.99977648258
2011	39999.9991059303
2012	9999.99977648258
2013	0
2016	9999.99977648258
2017	29999.999329447703
2018	19999.9995529652
2020	0