| Characteristic | Number of users in millions |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Source
Release date
June 2017
Region
United States
Survey time period
2016 to 2017
Supplementary notes
* Forecast figures from 2017.
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