| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 11.97 | 14.17 | 9.93 |
| 2024 | 9 | 16.86 | 4.92 |
| 2023 | 6.93 | 9.43 | 5.51 |
| 2022 | 4.85 | 7.86 | 2.46 |
| 2021 | 3.05 | 3.83 | 2.18 |
| 2020 | 4.4 | 5.7 | 2.69 |
| 2019 | 3.7 | 5.76 | 1.53 |
| 2018 | 4.42 | 6.98 | 2.35 |
| 2017 | 6.72 | 7.9 | 5.85 |
| 2016 | 9.96 | 18.06 | 5.97 |
| 2015 | 8.08 | 16.5 | 4.97 |
| 2014 | 4.39 | 5.77 | 3.16 |
| 2013 | 4.05 | 5.5 | 3.15 |
| 2012 | 3.31 | 4.29 | 2.56 |
| 2011 | 3.83 | 5.1 | 3.15 |