| Characteristic | Preferred method | Most common method |
|---|---|---|
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
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Source
Release date
May 2018
Region
Worldwide
Survey time period
November 10 to December 31, 2017
Number of respondents
Approximately 130,000
Method of interview
Online survey
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