| 車齡 |
檢測不合格數 |
檢測數 |
不合格率 |
| 3 | 4,160 | 35,855 | 11.60% |
| 4 | 3,562 | 39,374 | 9.05% |
| 5 | 3,359 | 33,731 | 9.96% |
| 6 | 2,849 | 29,046 | 9.81% |
| 7 | 3,629 | 33,402 | 10.86% |
| 8 | 4,579 | 39,029 | 11.73% |
| 9 | 5,133 | 36,610 | 14.02% |
| 10 | 5,862 | 33,850 | 17.32% |
| 11 | 6,831 | 34,657 | 19.71% |
| 12 | 6,727 | 29,792 | 22.58% |
| 13 | 7,200 | 31,008 | 23.22% |
| 14 | 6,281 | 25,449 | 24.68% |
| 15 | 3,924 | 16,844 | 23.30% |
| 16 | 2,927 | 10,454 | 28.00% |
| 17 | 1,062 | 4,078 | 26.04% |
| 18 | 657 | 2,233 | 29.42% |
| 19 | 438 | 1,476 | 29.67% |
| 20(含以上) | 1,212 | 4,139 | 29.28% |
| 不詳 | 741 | 3,339 | 22.19% |
| 合計 | 71,133 | 444,366 | 16.01% |
註１：依車輛出廠年月統計，同車號以1筆計算。
註２：不合格率計算公式如下：
不合格率(%)=(檢測不合格數 / 檢測數) * 100%
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