Year	current US$
2012	1282090260.28818
2013	947810456.615823
2014	416808670.075841
2015	229880518.366326
2016	68159818.6400242
2017	33820210.9558201
2018	36396368.1998607
2019	378281747.007865
2020	183614816.68196