Year	current US$
2009	4864092
2010	4619872
2011	3285632
2012	4737341
2013	53489209
2014	72921911
2015	11881005
2016	4109929
2017	17744305
2018	5845178
2019	1838136
2020	8771623
2021	12797212
2022	5916151