| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 14.72 | 26.38 | 10.46 |
| 2024 | 12.46 | 18.28 | 9.89 |
| 2023 | 16.43 | 20.28 | 13.62 |
| 2022 | 15.96 | 25.06 | 11.8 |
| 2021 | 23.19 | 39.68 | 15.38 |
| 2020 | 24.49 | 46.79 | 14.26 |
| 2019 | 26.68 | 42.75 | 20.02 |
| 2018 | 17.65 | 24.49 | 9.51 |
| 2017 | 25.76 | 41.02 | 17.59 |
| 2016 | 22.41 | 60.82 | 12.59 |
| 2015 | 17.51 | 30.74 | 9.23 |
| 2014 | 13.96 | 20.36 | 10.92 |
| 2013 | 13.48 | 16.26 | 10.32 |