| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 9.96 | 10.67 | 9.38 |
| 2024 | 8.41 | 11.69 | 5.95 |
| 2023 | 12.19 | 18.23 | 8.81 |
| 2022 | 16.36 | 22.79 | 12.07 |
| 2021 | 25.91 | 48.76 | 15.38 |
| 2020 | 38.87 | 56.3 | 25.16 |
| 2019 | 17.12 | 28.28 | 9.99 |
| 2018 | 19.13 | 31.93 | 9.96 |
| 2017 | 38.5 | 56.66 | 26.1 |
| 2016 | 46.09 | 72.58 | 24.41 |
| 2015 | 34 | 49.59 | 21.39 |
| 2014 | 26.03 | 31.91 | 20.41 |
| 2013 | 26.67 | 30.34 | 17.08 |