| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 28.45 | 49.76 | 12.14 |
| 2024 | 16.71 | 31.27 | 8.5 |
| 2023 | 27.27 | 38.68 | 15.81 |
| 2022 | 17.15 | 22.88 | 11.53 |
| 2021 | 29.94 | 48.96 | 15.91 |
| 2020 | 16.35 | 26.84 | 9.55 |
| 2019 | 12.97 | 17.42 | 9.58 |
| 2018 | 16.4 | 21 | 12.17 |
| 2017 | 14.09 | 16.7 | 12.24 |
| 2016 | 19.91 | 28.72 | 15.21 |
| 2015 | 32.35 | 46.53 | 20.41 |
| 2014 | 24.15 | 31.76 | 15.86 |
| 2013 | 14.46 | 26.79 | 7.85 |
| 2012 | 7.98 | 10.76 | 5.79 |