Year	current US$
2013	59999.9986588955
2014	0
2015	19999.9995529652
2016	0
2017	9999.99977648258
2018	9999.99977648258
2019	19999.9995529652
2020	109999.999403954
2021	819999.992847443
2022	9999.99977648258