| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 14.35 | 20.03 | 9.41 |
| 2024 | 5.85 | 15 | 3.3 |
| 2023 | 5.01 | 7.59 | 3.08 |
| 2022 | 3.9 | 6.74 | 2.81 |
| 2021 | 5.6 | 8.76 | 3.8 |
| 2020 | 6.68 | 10.85 | 4.27 |
| 2019 | 4.67 | 8.75 | 1.83 |
| 2018 | 4.23 | 6.83 | 2.01 |
| 2017 | 6.49 | 8.55 | 4.97 |
| 2016 | 12.97 | 19.91 | 8.11 |
| 2015 | 26.73 | 40.01 | 9.06 |
| 2014 | 11.89 | 22.2 | 8.73 |
| 2013 | 7.5 | 10.6 | 5.05 |