| Characteristic | Value in billions of U.S. dollars |
|---|---|
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| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Sources
Release date
April 2018
Region
Worldwide
Survey time period
2004 - 2017
Supplementary notes
The source adds the following information: The total values include estimates for confidential transactions.
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