| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 11.67 | 13.31 | 9.62 |
| 2024 | 8.23 | 12.32 | 6.15 |
| 2023 | 14.09 | 21.07 | 9.04 |
| 2022 | 18.58 | 25.61 | 12.5 |
| 2021 | 17.49 | 26.46 | 12.67 |
| 2020 | 15.68 | 25.14 | 8.89 |
| 2019 | 7.95 | 10.04 | 6.31 |
| 2018 | 7.57 | 9.99 | 5.99 |
| 2017 | 10.15 | 13.19 | 8.39 |
| 2016 | 13.14 | 17.92 | 9.92 |
| 2015 | 14.38 | 20.97 | 8.38 |