| Characteristic | 2014 | 2016 |
|---|---|---|
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
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Source
Release date
March 2017
Region
Worldwide
Survey time period
2014 and 2016
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