Year	current US$
2009	3440000.05722046
2010	3519999.98092651
2011	1059999.9427795399
2012	2259999.99046326
2013	1320000.05245209
2014	2029999.97138977
2015	1659999.9666214
2016	1460000.03814697
2017	1059999.9427795399
2018	689999.997615814
2019	409999.99642372096
2020	230000.004172325
2021	180000.00715255702
2022	140000.000596046