| 年级 | 合计 | ||||||
| 1 | 2 | 3 | 4 | ||||
| Y | 0 | 计数 | 56 | 32 | 39 | 48 | 175 |
| Y中的% | 32.0% | 18.3% | 22.3% | 27.4% | 100.0% | ||
| 年级中的% | 94.9% | 86.5% | 84.8% | 85.7% | 88.4% | ||
| 总数的% | 28.3% | 16.2% | 19.7% | 24.2% | 88.4% | ||
| 1 | 计数 | 3 | 5 | 7 | 8 | 23 | |
| Y中的% | 13.0% | 21.7% | 30.4% | 34.8% | 100.0% | ||
| 年级中的% | 5.1% | 13.5% | 15.2% | 14.3% | 11.6% | ||
| 总数的% | 1.5% | 2.5% | 3.5% | 4.0% | 11.6% | ||
| 合计 | 计数 | 59 | 37 | 46 | 56 | 198 | |
| Y中的% | 29.8% | 18.7% | 23.2% | 28.3% | 100.0% | ||
| 年级中的% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | ||
| 总数的% | 29.8% | 18.7% | 23.2% | 28.3% | 100.0% | ||