Year	current US$
2011	19999.9995529652
2012	29999.999329447703
2013	29999.999329447703
2014	9999.99977648258
2015	29999.999329447703
2016	9999.99977648258
2017	19999.9995529652
2018	9999.99977648258
2019	9999.99977648258