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Note 29 - Treasury Shares Shares Owned By Third Parties But Managed (Details) - shares | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Shares Owned By Third Parties But Managed By The Group Abstract |  |  |
Number Of Shares Owned By Third Parties | 23,807,398 | 25,306,229 | 34,597,310
Percentage Share Capital | 0.36% | 0.38% | 0.52%

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Period Type: | duration

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