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Significant accounting policies, estimates and judgements (Tables) | 12 Months Ended
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Dec. 31, 2019
Significant accounting policies, estimates and judgements |
Schedule of foreign exchange rates used to translate the financial statements into Parent's functional currency | The main foreign exchange rates used to translate the financial statements into the parent’s functional currency are indicated below:
|  | Annual |  | Exchange |  | Annual |  | Exchange |  | Annual |  | Exchange
|  | average |  | rate at |  | average |  | rate at |  | average |  | rate at
|  | exchange rate |  | December 31, |  | exchange rate |  | December 31, |  | exchange rate |  | December 31,
(currency amount for 1 €) |  | 2019 |  | 2019 |  | 2018 |  | 2018 |  | 2017 |  | 2017
U.S. Dollar |  | 1.12 |  | 1.12 |  | 1.18 |  | 1.15 |  | 1.13 |  | 1.20
Pound Sterling |  | 0.88 |  | 0.85 |  | 0.88 |  | 0.89 |  | 0.88 |  | 0.89
Australian Dollar |  | 1.61 |  | 1.60 |  | 1.58 |  | 1.62 |  | 1.47 |  | 1.53

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- Definition The entire disclosure for the effect of changes in foreign exchange rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 21 -IssueDate 2019-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=21&code=ifrs-tx-2019-en-r&doctype=Standard&dita_xref=IAS21_g51-57_TI -URIDate 2019-03-27 + Details
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