Year	current US$
2012	537789.642810822
2013	608943.819999695
2014	528789.99710083
2015	857949.97215271
2016	1124140.02418518
2017	756519.973278046
2018	825107.514858246
2019	1499580.02567291
2020	1306611.65714264
2021	1047899.9614715601
2022	1490220.30830383