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Note 24 - Share-based Payments - Outstanding Options (Details) | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Statement Line Items [Line Items] |  |  |
Options outstanding at January 1st | 131,244,000 | 121,770,000 | 126,149,000
Options issued during the period | 20,435,000 | 24,806,000 | 16,568,000
Options exercised during the period | (13,548,000) | (11,613,000) | (19,975,000)
Options forfeited during the period | (2,910,000) | (3,719,000) | (972,000)
Options outstanding at ended year | 135,221,000 | 131,244,000 | 121,770,000

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