Year	current US$
2012	48549.998551607096
2013	1399.99995008111
2014	25820.0000971556
2015	68889.9978995323
2016	26009.9992156029
2017	2880.0000436604
2018	596646.130084991
2019	987209.975719452
2020	733242.869377136
2021	645200.01411438
2022	464390.933513641