Year	current US$
1977	19999.9995529652
1981	9999.99977648258
1984	9999.99977648258
1988	9999.99977648258
1998	50000.0007450581
2001	29999.999329447703
2003	29999.999329447703
2010	29999.999329447703
2011	9999.99977648258
2012	550000.011920929
2013	209999.993443489
2014	150000.005960464
2015	200000.00298023198
2016	79999.9982118607
2017	59999.9986588955
2018	29999.999329447703
2019	9999.99977648258
2020	9999.99977648258
2021	39999.9991059303
2022	39999.9991059303