| 0~50 L−1 | 50~100 L−1 | ≥100 L−1 | 合计 |
春 | 27.8 | 3.9 | 0.6 | 32.3 |
夏 | 25.7 | 4.8 | 0.7 | 31.2 |
秋 | 18.7 | 2.4 | 0.2 | 21.3 |
冬 | 13.5 | 1.6 |
| 15.1 |
合计 | 85.7 | 12.7 | 1.5 | 100 |