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LABOR COSTS (Included Cost of sales and Selling, General and Administrative expenses) | 12 Months Ended
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Dec. 31, 2017
Labor Costs [Abstract] |
LABOR COSTS (Included Cost of sales and Selling, General and Administrative expenses) | LABOR COSTS (Included Cost of sales and Selling, General and Administrative expenses)
| Year ended December 31,
| 2017 |  | 2016 |  | 2015
Wages, salaries and social security costs | 849,354 |  |  | 698,825 |  |  | 754,063 |
Termination benefits | 25,783 |  |  | 27,048 |  |  | 30,888 |
Post-employment benefits (Note 21 (i)) | 28,213 |  |  | 27,758 |  |  | 29,390 |
Labor costs | 903,350 |  |  | 753,631 |  |  | 814,341 |
As of December 31, 2017, 2016 and 2015, the quantity of employees was 21,335, 16,725 and 16,739, respectively.

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