| Characteristic | 2015 | 2016 | 2017 | 2018 |
|---|---|---|---|---|
| - | - | - | - | - |
| - | - | - | - | - |
| - | - | - | - | - |
| - | - | - | - | - |
| - | - | - | - | - |
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Source
Release date
August 2018
Region
Europe
Survey time period
December 2015 to February 2016
Number of respondents
277*
Special properties
Senior executives
Method of interview
Questionnaire
Supplementary notes
* 2018 n= 277; 2016 n=298; 2015 n=278.
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