Aging analysis of notes and accounts receivable, net
| December 31, 2016 |
December 31, 2017 |
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| NT$ | NT$ | |||||||
| (In Millions) | (In Millions) | |||||||
|
Neither past due nor impaired |
$ | 108,411.4 | $ | 105,295.2 | ||||
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Past due but not impaired |
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Past due within 30 days |
15,017.8 | 13,984.1 | ||||||
|
Past due 31-60 days |
1,844.8 | 929.7 | ||||||
|
Past due 61-120 days |
3,061.3 | 582.8 | ||||||
|
Past due over 121 days |
— | 341.4 | ||||||
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| $ | 128,335.3 | $ | 121,133.2 | |||||
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