| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2026 | 10.33 | 11.93 | 8.17 |
| 2025 | 6.39 | 8.46 | 4.51 |
| 2024 | 3.44 | 5.31 | 2.51 |
| 2023 | 6.8 | 11.2 | 4.44 |
| 2022 | 8.09 | 10.13 | 6.08 |
| 2021 | 9.32 | 14.68 | 6.61 |
| 2020 | 5.68 | 7.95 | 4.14 |
| 2019 | 4.59 | 5.77 | 4.12 |
| 2018 | 5.26 | 7.1 | 4.17 |
| 2017 | 7.94 | 9.95 | 6.8 |
| 2016 | 8.82 | 10.39 | 6.26 |
| 2015 | 8.99 | 15.08 | 5.83 |