| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 14.49 | 20.61 | 11.33 |
| 2024 | 11.55 | 22.54 | 7.99 |
| 2023 | 11.95 | 16.51 | 7.15 |
| 2022 | 11.81 | 15.24 | 9.14 |
| 2021 | 14.42 | 20.25 | 10.43 |
| 2020 | 6.07 | 12.98 | 4.21 |
| 2019 | 5.55 | 7.3 | 4.78 |
| 2018 | 7.21 | 9.86 | 4.92 |
| 2017 | 13.28 | 17.94 | 8.71 |
| 2016 | 16.2 | 19.74 | 13.61 |
| 2015 | 18.96 | 28.69 | 10.09 |