Year	current US$
1991	9999.99977648258
1993	9999.99977648258
1997	19999.9995529652
1998	0
2011	79999.9982118607
2012	9999.99977648258
2016	0
2017	0
2019	0
2020	9999.99977648258
2021	9999.99977648258