| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 30.26 | 41.64 | 16.09 |
| 2024 | 21.64 | 83.36 | 6.39 |
| 2023 | 10.22 | 14.95 | 8.28 |
| 2022 | 7.79 | 14.81 | 5.28 |
| 2021 | 5.75 | 7.47 | 4.68 |
| 2020 | 6.6 | 7.92 | 5.38 |
| 2019 | 5.53 | 7.39 | 4.23 |
| 2018 | 8.36 | 17.57 | 4.36 |
| 2017 | 17.38 | 24.05 | 12.29 |
| 2016 | 22.01 | 30.16 | 16.43 |
| 2015 | 31.29 | 53.16 | 19.76 |
| 2014 | 21.39 | 27.94 | 15.94 |
| 2013 | 17.85 | 22.13 | 15.52 |