Year	current US$
2009	159999.99642372102
2010	379999.99523162795
2011	529999.971389771
2012	109999.999403954
2013	310000.002384186
2014	50000.0007450581
2015	29999.999329447703
2016	39999.9991059303
2017	9999.99977648258
2018	29999.999329447703