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| Company | Unit | Dec 2017 | Mar 2018 | Jun 2018 | Sep 2018 | Dec 2018 | Mar 2019 | Jun 2019 | Sep 2019 | Dec 2019 | Mar 2020 | Jun 2020 |
| Avast | USD mil | 31.2 | 32.0 | 32.8 | 33.1 | 33.3 | ||||||
| O2 Czech Republic | CZK mil | ... | 411 | 399 | 372 | 38.0 | 354 | ... |
Helgi Library 
