Year	current US$
2007	19999.9995529652
2008	370000.00476837205
2009	170000.00178813902
2010	289999.99165535
2011	159999.99642372102
2012	469999.998807907
2013	219999.998807907
2014	200000.00298023198
2015	597748.219966888
2016	101829.811930656
2017	396133.482456207
2018	50748.2588291168
2019	19264.301285147703
2020	873097.30052948
2021	206076.323986053
2022	48964.5190536976