Year	constant 2015 US$
2015	29182742574.166985
2016	32690659188.612656
2017	38686679171.04814
2018	36581906624.80311
2019	32218653998.85834
2020	32015941654.731987
2021	34062190122.044064
2022	21142545760.626842
2023	19468122317.78003