Year	current US$
2001	19999.9995529652
2002	159999.99642372102
2003	90000.0035762787
2004	39999.9991059303
2005	29999.999329447703
2008	39999.9991059303
2020	90000.0035762787
2021	29999.999329447703
2022	39999.9991059303