| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 17.79 | 20.68 | 14.5 |
| 2024 | 20.73 | 34.15 | 11.98 |
| 2023 | 24.37 | 56.49 | 6.54 |
| 2022 | 7.83 | 12.97 | 6.12 |
| 2021 | 9.19 | 12.42 | 7.26 |
| 2020 | 11.42 | 16.31 | 6.57 |
| 2019 | 7.87 | 11.35 | 6.65 |
| 2018 | 10.65 | 17.33 | 6.46 |
| 2017 | 15.66 | 19.37 | 12.64 |
| 2016 | 22.09 | 32.75 | 17.41 |
| 2015 | 22.99 | 41.76 | 12.24 |
| 2014 | 17.91 | 24.91 | 12.41 |
| 2013 | 15.67 | 25.86 | 10.6 |
| 2012 | 9.83 | 12.03 | 8.03 |
| 2011 | 11.76 | 14.81 | 9.13 |