| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 15.94 | 23.31 | 9.76 |
| 2024 | 17.41 | 22.89 | 12.1 |
| 2023 | 29.1 | 38 | 22.22 |
| 2022 | 28.53 | 36.29 | 25.08 |
| 2021 | 32.14 | 61.51 | 15.83 |
| 2020 | 23.71 | 35.98 | 7.4 |
| 2019 | 6.62 | 8.34 | 4.19 |
| 2018 | 7.33 | 11.15 | 4.52 |
| 2017 | 11.58 | 13.74 | 10.21 |
| 2016 | 19.6 | 35.94 | 11.98 |
| 2015 | 33.36 | 64.02 | 14.3 |
| 2014 | 10.17 | 18.07 | 6.42 |
| 2013 | 6.27 | 7.68 | 4.69 |
| 2012 | 7.05 | 8.82 | 4.92 |