Year	current US$
2009	10339499
2010	20486361
2011	19854270
2012	26511802
2013	16758559.000000002
2014	26537316
2015	20717772
2016	15491763
2017	30060831
2018	18848598
2019	24947389
2020	18904904
2021	21773455
2022	22595261