| Year | Value (US Dollars) |
|---|---|
|
2023 |
28488000000 |
|
2022 |
30901000000 |
|
2021 |
28319000000 |
|
2020 |
21979000000 |
|
2019 |
23329000000 |
|
2018 |
23425000000 |
|
2017 |
21569000000 |
|
2016 |
20375000000 |
|
2015 |
22089000000 |
|
2014 |
24731000000 |