Year	current US$
2012	6255083.793308585
2013	8483989.506959915
2014	6387129.992246626
2015	7212009.932845835
2016	6371029.9879312515
2017	8858120.061457159
2018	8076681.459322572
2019	13504150.02251976
2020	10225799.98709261
2021	11687500.06146729
2022	12195027.062669395