| KY6 | 2.12 | 8.37 | 3.95 |
| KY7 | 2.76 | 11.31 | 4.10 |
| KY8 | 1.73 | 6.42 | 3.71 |
| KY9 | 1.89 | 9.12 | 3.81 |
| KY10 | 1.78 | 8.89 | 4.17 |
| 平均值 | — | — | 3.99 |
| 标准差 | — | — | 0.21 |
| 变异系数 | — | — | 5.16% |