Year	constant 2015 US$
2011	747024639070.3438
2012	808753171662.6401
2013	855371582147.6924
2014	924121296227.8657
2015	981361566755.901
2016	1048263623757.8068
2017	1113065003935.9888
2018	1192945023810.5798
2019	1279129166798.7122
2020	1301500950791.61
2021	1353040515771.0657