| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 4.79 | 6.87 | 3.91 |
| 2024 | 6.34 | 11.67 | 3.89 |
| 2023 | 9.25 | 13.64 | 5.42 |
| 2022 | 6.66 | 11.85 | 5.03 |
| 2021 | 10.67 | 14.59 | 7.34 |
| 2020 | 10.19 | 23.33 | 4.17 |
| 2019 | 6.5 | 10.89 | 4.81 |
| 2018 | 7.2 | 10.19 | 4.99 |
| 2017 | 14.94 | 24.54 | 9.18 |
| 2016 | 18.17 | 24.11 | 11.62 |
| 2015 | 15.72 | 19.87 | 7.66 |
| 2014 | 8.72 | 12.79 | 6.13 |
| 2013 | 4.06 | 6.46 | 2.84 |
| 2012 | 3.95 | 6.04 | 2.54 |
| 2011 | 8.96 | 12.27 | 4.18 |