Year	current US$
2008	48941473
2009	105118316
2010	14627178
2011	9068038
2012	8550765
2013	11616694
2014	14516361
2015	28135400
2016	23026460
2017	18809127
2018	28155690
2019	9412109
2020	7555947
2021	26333299
2022	37221052