Year	current US$
2013	1645686216.0352461
2014	1778894902.6845448
2015	1946459268.1787746
2016	2101794289.3636656
2017	2188257960.511138
2018	2258491653.209244
2019	2377939716.184356
2020	2458098971.421498
2021	2552487580.5335326
2022	2823487376.2807994
2023	3153307712.6507277