| Characteristic | End of 2012 | End of 2013 | End of 2014 |
|---|---|---|---|
| - | - | - | - |
| - | - | - | - |
| - | - | - | - |
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Source
Release date
November 2015
Region
Worldwide
Survey time period
2012 to 2014
Supplementary notes
* End-of year figures.
Data for and available in the earlier reports from the same source.
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