| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 9.63 | 13.23 | 5.99 |
| 2024 | 4.77 | 8.07 | 3.61 |
| 2023 | 5.95 | 9.11 | 4.68 |
| 2022 | 6.27 | 9.52 | 4.19 |
| 2021 | 6.43 | 9.45 | 4.05 |
| 2020 | 7.78 | 9.71 | 5.53 |
| 2019 | 7.42 | 9.97 | 4.98 |
| 2018 | 7.76 | 13.47 | 4.73 |
| 2017 | 11.23 | 16.26 | 8.53 |
| 2016 | 22.59 | 36.9 | 12.27 |
| 2015 | 36.77 | 51.06 | 12.83 |
| 2014 | 12.1 | 19.33 | 8.9 |
| 2013 | 12.2 | 14.33 | 9.79 |