Year	current US$
2012	104290.11285305
2013	121353.402733803
2014	110870.003700256
2015	97949.9965906143
2016	93950.0033855438
2017	116509.99635458
2018	34096.0919857025
2020	26280.2727520466
2021	57000.0000298023