| Characteristic | Installed base in millions |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Source
Release date
November 2014
Region
Worldwide
Survey time period
2008 to 2013
Supplementary notes
* Figures from 2014 onwards are forecasts
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