The sensitivity analysis of present value of defined benefit obligations effected by the changes of significant actuarial assumptions at December 31, 2016 and 2017 are shown below:
| Discount rate | Future salary increases | |||||||||||||||
| Increase 0.25% |
Decrease 0.25% |
Increase 0.25% |
Decrease 0.25% |
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December 31, 2016 |
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Effect on present value of defined benefit obligations |
(31,294 | ) | 32,893 | 32,174 | (30,787 | ) | ||||||||||
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December 31, 2017 |
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Effect on present value of defined benefit obligations |
(27,192 | ) | 28,506 | 27,955 | (26,816 | ) | ||||||||||
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