| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 9.33 | 12.27 | 7.74 |
| 2024 | 6.27 | 11.56 | 3.53 |
| 2023 | 7.14 | 9.77 | 5.25 |
| 2022 | 8.28 | 13.14 | 5.62 |
| 2021 | 13.55 | 21.51 | 9.68 |
| 2020 | 11.66 | 17.91 | 7.14 |
| 2019 | 9.25 | 11.03 | 7.36 |
| 2018 | 10.96 | 16.57 | 7.36 |
| 2017 | 21.87 | 36.51 | 14.02 |
| 2016 | 18.22 | 28.46 | 13.6 |
| 2015 | 20.19 | 39.23 | 10.02 |
| 2014 | 9.53 | 14 | 6.63 |
| 2013 | 6.82 | 8.3 | 5.98 |