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29. Other operating income (expenses), net (Tables) | 12 Months Ended
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Dec. 31, 2017
Other Operating Income Expenses Net Tables |
Other operating income (expenses), net |
| 2017 | 2016 | 2015
Other operating income, net | 75,410 | 62,570 | 190,840
Other operating expenses | (81,089) | (57,848) | (47,085)
Other operating income (expenses), net | (5,679) | 4,722 | 143,755

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