| 車齡 |
檢測不合格數 |
檢測數 |
不合格率 |
| 3 | 14,052 | 119,655 | 11.74% |
| 4 | 14,420 | 151,205 | 9.54% |
| 5 | 13,010 | 134,138 | 9.70% |
| 6 | 11,570 | 116,085 | 9.97% |
| 7 | 13,663 | 128,246 | 10.65% |
| 8 | 17,471 | 143,648 | 12.16% |
| 9 | 18,748 | 136,778 | 13.71% |
| 10 | 22,780 | 131,312 | 17.35% |
| 11 | 28,923 | 145,084 | 19.94% |
| 12 | 25,262 | 114,123 | 22.14% |
| 13 | 26,949 | 116,937 | 23.05% |
| 14 | 25,295 | 102,347 | 24.71% |
| 15 | 16,033 | 68,016 | 23.57% |
| 16 | 11,730 | 42,533 | 27.58% |
| 17 | 4,915 | 18,257 | 26.92% |
| 18 | 2,860 | 10,027 | 28.52% |
| 19 | 1,614 | 5,417 | 29.80% |
| 20(含以上) | 4,899 | 16,445 | 29.79% |
| 不詳 | 2,494 | 12,198 | 20.45% |
| 合計 | 276,688 | 1,712,451 | 16.16% |
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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