Year	current US$
2006	419999.986886978
2007	589999.973773956
2008	560000.002384186
2009	330000.013113022
2010	370000.00476837205
2011	280000.001192093
2012	300000.011920929
2013	519999.980926514
2014	639999.985694885
2015	272933.98976326
2016	237084.701657295
2017	594205.856323242
2018	599919.736385345
2019	217626.228928566
2020	27303.5671561956
2021	887696.2661743159
2022	442653.387784958