| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 9.08 | 22.74 | 6.18 |
| 2024 | 6.75 | 10.86 | 4.64 |
| 2023 | 12.18 | 15.89 | 8.45 |
| 2022 | 11.43 | 15.61 | 6.89 |
| 2021 | 14.56 | 19.2 | 11 |
| 2020 | 15.88 | 22.78 | 9.12 |
| 2019 | 6.89 | 9.54 | 4.63 |
| 2018 | 5.24 | 8.18 | 3.77 |
| 2017 | 3.36 | 5.57 | 1.84 |
| 2016 | 1.74 | 2.45 | 1.25 |
| 2015 | 2.33 | 3.05 | 1.32 |
| 2014 | 1.72 | 2.3 | 1.27 |
| 2013 | 1.5 | 2.11 | 0.91 |
| 2012 | 1.58 | 2.82 | 0.73 |
| 2011 | 2.51 | 4.05 | 1.62 |
| 2010 | 3.81 | 5.49 | 2.83 |