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Basis of preparation of the financial statements (Tables) | 12 Months Ended
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Dec. 31, 2020
Basis of preparation of the financial statements |
Schedule of exchange rates used to translate its foreign operations |
|  | Closing rate |  | Average rate for the year ended
|  | 2020 |  | 2019 |  | 2018 |  | 2020 |  | 2019 |  | 2018
US Dollar ("US$") |  | 5.1967 |  | 4.0307 |  | 3.8748 |  | 5.1578 |  | 3.9461 |  | 3.6558
Canadian dollar ("CAD") |  | 4.0771 |  | 3.1034 |  | 2.8451 |  | 3.8480 |  | 2.9746 |  | 2.8190
Euro ("EUR" or "€") |  | 6.3779 |  | 4.5305 |  | 4.4390 |  | 5.8989 |  | 4.4159 |  | 4.3094

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