| Characteristic | 2016 | 2017 |
|---|---|---|
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
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Source
Release date
November 2018
Region
Europe, Poland
Survey time period
2016 to 2017
Supplementary notes
The source mentions the numbers have been compiled "using a mixture of primary and secondary data sources. Primary refers to our own surveys and commissioned research; whereas secondary refers to authoritative third-party vendor data, and other publicly available data." No specifics, however, are given.
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