Year	current US$
2011	569999.992847443
2012	411821.395158768
2013	887793.481349945
2014	551404.774188995
2015	760352.075099945
2016	408096.641302109
2017	887531.578540802
2018	719550.2519607539
2019	673078.596591949
2020	447697.66926765395
2021	962700.009346008
2022	482260.257005692