| Year | Value (US Dollars) |
|---|---|
|
2023 |
5200000000 |
|
2022 |
7500000000 |
|
2021 |
5700000000 |
|
2020 |
3200000000 |
|
2019 |
5400000000 |
|
2018 |
6500000000 |
|
2017 |
5200000000 |
|
2016 |
4900000000 |
|
2015 |
6500000000 |
|
2014 |
12800000000 |