Year	current US$
2009	41569999.6948242
2010	37560001.373291
2011	38980001.0696054
2012	37576196.0032396
2013	43455325.0670433
2014	32724078.668106798
2015	61608354.3077111
2016	35731506.6154115
2017	40156249.0928918
2018	42044338.9033899
2019	46697547.568008296
2020	45499774.6613808
2021	48531699.171057
2022	13402221.76164389