| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 13 | 16.38 | 11.69 |
| 2024 | 16.71 | 24.04 | 12.57 |
| 2023 | 21.9 | 49.32 | 14.27 |
| 2022 | 20.17 | 28.63 | 13.39 |
| 2021 | 22.56 | 41.88 | 9.82 |
| 2020 | 17.09 | 39.13 | 6.04 |
| 2019 | 10.62 | 24.75 | 2.83 |
| 2018 | 10.69 | 18.36 | 3.72 |
| 2017 | 10.61 | 15.71 | 7.84 |
| 2016 | 10.6 | 18.71 | 7.64 |
| 2015 | 22.8 | 46.36 | 15.46 |
| 2014 | 20.26 | 23.61 | 16.91 |
| 2013 | 15.78 | 21.79 | 12.27 |