| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 16.44 | 18.52 | 13.22 |
| 2024 | 13.61 | 20.31 | 10.9 |
| 2023 | 12.07 | 19.82 | 6.13 |
| 2022 | 6.21 | 8.72 | 5.06 |
| 2021 | 7.32 | 9.46 | 5.57 |
| 2020 | 11.19 | 16.41 | 7.45 |
| 2019 | 6.34 | 11.7 | 4.02 |
| 2018 | 7.28 | 10.75 | 4.7 |
| 2017 | 12.46 | 14.86 | 8.42 |
| 2016 | 23.09 | 37.64 | 14.51 |
| 2015 | 41.57 | 63.24 | 25.21 |
| 2014 | 50.82 | 94.45 | 29.48 |
| 2013 | 61.4 | 91.09 | 33.89 |