| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 13.02 | 14.99 | 10.64 |
| 2024 | 6.59 | 17.05 | 4.72 |
| 2023 | 6.64 | 8.69 | 5.01 |
| 2022 | 5.38 | 6.86 | 3.64 |
| 2021 | 6.82 | 14.71 | 2.64 |
| 2020 | 4.31 | 5.71 | 3.32 |
| 2019 | 5.09 | 7.41 | 3.29 |
| 2018 | 4.93 | 6.15 | 3.53 |
| 2017 | 6.72 | 8.7 | 4.88 |
| 2016 | 10.29 | 16.21 | 7.99 |
| 2015 | 14.1 | 30.82 | 7.12 |
| 2014 | 8.15 | 12.49 | 5.58 |
| 2013 | 6.95 | 8.36 | 5.39 |