| 車齡 |
檢測不合格數 |
檢測數 |
不合格率 |
| 3 | 7,187 | 60,463 | 11.89% |
| 4 | 6,751 | 71,361 | 9.46% |
| 5 | 6,056 | 61,978 | 9.77% |
| 6 | 5,153 | 53,095 | 9.71% |
| 7 | 6,571 | 61,042 | 10.76% |
| 8 | 8,479 | 70,228 | 12.07% |
| 9 | 9,100 | 65,179 | 13.96% |
| 10 | 10,869 | 61,913 | 17.56% |
| 11 | 13,277 | 65,218 | 20.36% |
| 12 | 12,135 | 53,507 | 22.68% |
| 13 | 12,914 | 55,173 | 23.41% |
| 14 | 11,536 | 46,163 | 24.99% |
| 15 | 7,277 | 30,950 | 23.51% |
| 16 | 5,391 | 19,156 | 28.14% |
| 17 | 2,009 | 7,655 | 26.24% |
| 18 | 1,205 | 4,211 | 28.62% |
| 19 | 745 | 2,548 | 29.24% |
| 20(含以上) | 2,172 | 7,318 | 29.68% |
| 不詳 | 1,260 | 5,787 | 21.77% |
| 合計 | 130,087 | 802,945 | 16.20% |
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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