| (e) | Expenses recognized in profit or loss for the years ended December 31, 2015, 2016 and 2017 are as follows: |
| (In millions of won) | 2015 | 2016 | 2017 | |||||||||
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Current service cost |
187,768 | 210,682 | 195,850 | |||||||||
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Net interest cost |
11,265 | 10,280 | 2,391 | |||||||||
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| 199,033 | 220,962 | 198,241 | ||||||||||
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Expenses are recognized in the following line items in the consolidated statements of comprehensive income:
| (In millions of won) | 2015 | 2016 | 2017 | |||||||||
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Cost of sales |
159,348 | 177,652 | 158,418 | |||||||||
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Selling expenses |
11,567 | 12,513 | 11,114 | |||||||||
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Administrative expenses |
14,809 | 16,486 | 16,287 | |||||||||
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Research and development expenses |
13,309 | 14,311 | 12,422 | |||||||||
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| 199,033 | 220,962 | 198,241 | ||||||||||
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