| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 13.73 | 16.95 | 10.66 |
| 2024 | 10.32 | 18.39 | 7.56 |
| 2023 | 11.7 | 14.62 | 8.43 |
| 2022 | 9.62 | 14.7 | 7.33 |
| 2021 | 12.41 | 17.93 | 8.65 |
| 2020 | 14.88 | 20.18 | 10.75 |
| 2019 | 14 | 18.34 | 9.05 |
| 2018 | 10.89 | 16.32 | 8.07 |
| 2017 | 15.94 | 22.11 | 10.44 |
| 2016 | 23.63 | 52.3 | 16.73 |
| 2015 | 40.74 | 73.19 | 22.39 |
| 2014 | 24.59 | 31.4 | 17.29 |
| 2013 | 17.88 | 21.75 | 12.67 |