Year	current US$
1988	19999.9995529652
1989	9999.99977648258
1991	9999.99977648258
1993	19999.9995529652
1994	9999.99977648258
1996	9999.99977648258
1997	19999.9995529652
2015	50000.0007450581
2017	29999.999329447703
2018	50000.0007450581
2019	79999.9982118607
2020	50000.0007450581
2021	9999.99977648258