| 占比 | 春 | 夏 | ||||
| 较高 | 高 | 极高 | 较高 | 高 | 极高 | |
| 平均占比 | 77.1% | 45.4% | 25.1% | 68.9% | 40.1% | 21.5% |
| 最大占比 | 84.8% | 56.5% | 32.6% | 79.3% | 48.9% | 31.5% |
| 最小占比 | 69.6% | 32.6% | 15.2% | 51.1% | 25.0% | 13.0% |