| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2026 | 11.78 | 15.42 | 10 |
| 2025 | 7.87 | 12.95 | 4.52 |
| 2024 | 4.16 | 5.87 | 3.2 |
| 2023 | 7.04 | 9.76 | 4.71 |
| 2022 | 9.13 | 12.62 | 6.11 |
| 2021 | 7.8 | 10.7 | 5.87 |
| 2020 | 6.17 | 10.13 | 3.65 |
| 2019 | 5.05 | 7.05 | 3.67 |
| 2018 | 4.82 | 6.03 | 4.04 |
| 2017 | 5.7 | 6.94 | 4.64 |
| 2016 | 6.53 | 8.27 | 4.58 |
| 2015 | 6.49 | 9.68 | 3.7 |