| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 11.45 | 22.51 | 8.69 |
| 2024 | 8.37 | 11.93 | 5.91 |
| 2023 | 10.16 | 13.82 | 8.13 |
| 2022 | 12.28 | 24.11 | 7.89 |
| 2021 | 10.84 | 18.99 | 7.66 |
| 2020 | 9.57 | 12.82 | 7.18 |
| 2019 | 7.79 | 10.68 | 5.27 |
| 2018 | 4.51 | 5.99 | 3.61 |
| 2017 | 5.29 | 6.31 | 4.38 |
| 2016 | 6.64 | 9.03 | 5.86 |
| 2015 | 9.68 | 18.55 | 5.56 |
| 2014 | 6.29 | 8.06 | 5.11 |
| 2013 | 10.7 | 18.02 | 6.41 |
| 2012 | 24.12 | 36.27 | 13.29 |