Year	current US$
2008	29999.999329447703
2011	19999.9995529652
2012	29999.999329447703
2013	29999.999329447703
2014	39999.9991059303
2015	9999.99977648258
2018	0
2019	19999.9995529652
2020	39999.9991059303
2021	29999.999329447703
2022	29999.999329447703