Year	constant 2015 US$
2014	4053939433.8903246
2015	4069755000
2016	4359331098.341782
2017	4118080476.0689483
2018	3955474281.1685147
2019	3923987389.574989
2020	3596769451.639351
2021	3699840182.238352
2022	3814687644.0955954