Year	current US$
2012	6988.4299300611
2013	34619.3909645081
2014	57130.0014853477
2015	108429.998159409
2016	62710.002064704895
2017	195559.993386269
2018	426559.239625931
2019	514299.98874664295
2020	420780.569314957
2021	490399.98650550796
2022	249870.210886002