| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2026 | 33.07 | 35.98 | 30.84 |
| 2025 | 19.77 | 36.22 | 8.49 |
| 2024 | 4.84 | 13.73 | 2.86 |
| 2023 | 5.67 | 6.93 | 4.32 |
| 2022 | 5.86 | 8.26 | 4.49 |
| 2021 | 4.94 | 6.36 | 3.5 |
| 2020 | 6.22 | 9.95 | 4.41 |
| 2019 | 3.85 | 5.72 | 1.68 |
| 2018 | 3.49 | 5.31 | 1.82 |
| 2017 | 5.79 | 8.01 | 4.32 |
| 2016 | 5.18 | 6.35 | 3.46 |
| 2015 | 4.78 | 8.53 | 3.01 |
| 2014 | 4.85 | 6.32 | 3.44 |
| 2013 | 7.13 | 9.23 | 4.88 |
| 2012 | 7.78 | 9.98 | 5.54 |
| 2011 | 13.94 | 18.13 | 8.39 |