| Characteristic | Units shipped in millions |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Source
Release date
March 2019
Region
Worldwide
Survey time period
Q1 2015 - Q4 2018
Supplementary notes
Some data come from previous reports.
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