Year	current US$
2011	83000000
2012	171970001.220703
2013	213380004.882813
2014	275040008.544922
2015	317790008.544922
2016	217130004.882813
2017	216630004.882813
2018	201830001.831055
2019	264670013.427734
2020	199779998.779297
2021	132289993.286133
2022	93819999.6948242