Year	current US$
2007	419999.986886978
2008	9999.99977648258
2012	469999.998807907
2014	9829999.92370605
2015	1919999.95708466
2016	0
2018	29999.999329447703
2020	19999.9995529652
2021	19999.9995529652
2022	19999.9995529652