Year	current US$
2015	3382882995.6608877
2016	3509922868.3481174
2017	3938643613.4601035
2018	4340652398.219091
2019	4632838331.7143755
2020	4280580102.0127306
2021	5544315470.014351
2022	4812601370.0266285
2023	5453825052.593226