| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 6.08 | 9.28 | 3.95 |
| 2024 | 3.44 | 5.49 | 2.57 |
| 2023 | 4.51 | 6.76 | 3.9 |
| 2022 | 5.15 | 10.01 | 3.39 |
| 2021 | 4.52 | 7.42 | 3.69 |
| 2020 | 6.14 | 8.06 | 4.44 |
| 2019 | 4.49 | 5.97 | 3.8 |
| 2018 | 4.31 | 6.42 | 2.73 |
| 2017 | 8.62 | 15.92 | 5.87 |
| 2016 | 15.72 | 24.83 | 11.89 |
| 2015 | 28.3 | 64.5 | 12.1 |
| 2014 | 11.97 | 18.95 | 5.57 |
| 2013 | 5.75 | 7.76 | 4.25 |
| 2012 | 5.29 | 7.22 | 4.24 |