Year	current US$
2011	1932256126
2012	2647710862
2013	2234789257
2014	1989928704
2015	1494818567
2016	1122990972
2017	1213573602
2018	1213059990
2019	1165828545
2020	1175952420
2021	1283585848
2022	888065427