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v3.25.1

Basis of preparation (Details) | 3 Months Ended
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Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022
Notes and other explanatory information [abstract] |  |  |  |  |  |  |  |  |  |  |  |
Quarterly average exchange rate | 5.84 | 5.55 | 5.21 | 4.95 | 4.96 | 4.88 | 4.95 | 5.20 | 5.26 | 5.25 | 4.93 | 5.23
Period-end exchange rate | 6.19 | 5.45 | 5.56 | 5.00 | 4.84 | 5.01 | 4.82 | 5.08 | 5.22 | 5.41 | 5.24 | 4.74

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- Definition The spot exchange rate at the end of the reporting period. Exchange rate is the ratio of exchange for two currencies. Spot exchange rate is the exchange rate for immediate delivery. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
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- References No definition available. + Details
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