| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 11.84 | 16.97 | 8.8 |
| 2024 | 5.61 | 17.4 | 1.8 |
| 2023 | 3.58 | 4.33 | 3.03 |
| 2022 | 4.33 | 5.94 | 3.4 |
| 2021 | 3.28 | 6.8 | 1.14 |
| 2020 | 1.91 | 2.74 | 1.43 |
| 2019 | 1.86 | 3.03 | 1.2 |
| 2018 | 1.82 | 2.95 | 1.09 |
| 2017 | 8.97 | 25.85 | 2.25 |
| 2016 | 16.15 | 31.27 | 10.03 |
| 2015 | 6.99 | 15.43 | 4.29 |
| 2014 | 4.04 | 5.49 | 2.95 |
| 2013 | 2.44 | 3.54 | 1.89 |
| 2012 | 1.98 | 2.56 | 1.7 |
| 2011 | 2.82 | 3.42 | 2.41 |