| 車齡 |
檢測不合格數 |
檢測數 |
不合格率 |
| 3 | 26,387 | 241,949 | 10.91% |
| 4 | 28,334 | 295,281 | 9.60% |
| 5 | 25,734 | 265,338 | 9.70% |
| 6 | 23,259 | 229,780 | 10.12% |
| 7 | 24,904 | 238,808 | 10.43% |
| 8 | 31,461 | 266,944 | 11.79% |
| 9 | 34,662 | 262,907 | 13.18% |
| 10 | 41,499 | 255,301 | 16.25% |
| 11 | 52,531 | 275,548 | 19.06% |
| 12 | 46,904 | 223,354 | 21.00% |
| 13 | 49,319 | 223,368 | 22.08% |
| 14 | 49,192 | 203,450 | 24.18% |
| 15 | 32,928 | 139,252 | 23.65% |
| 16 | 23,737 | 87,286 | 27.19% |
| 17 | 11,164 | 40,487 | 27.57% |
| 18 | 6,001 | 21,560 | 27.83% |
| 19 | 3,179 | 10,537 | 30.17% |
| 20(含以上) | 9,397 | 31,767 | 29.58% |
| 不詳 | 3,881 | 19,838 | 19.56% |
| 合計 | 524,473 | 3,332,755 | 15.74% |
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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