| Year | Value (US Dollars) |
|---|---|
|
2023 |
18591000000 |
|
2022 |
21166000000 |
|
2021 |
19559000000 |
|
2020 |
15435000000 |
|
2019 |
17655000000 |
|
2018 |
17378000000 |
|
2017 |
16687000000 |
|
2016 |
14107000000 |
|
2015 |
16093000000 |
|
2014 |
18396000000 |