| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 14.24 | 17.34 | 10.76 |
| 2024 | 12.16 | 15.49 | 8.59 |
| 2023 | 16.2 | 23.28 | 10.3 |
| 2022 | 16.7 | 23.05 | 10.21 |
| 2021 | 15.2 | 24.22 | 8.49 |
| 2020 | 11.9 | 14.91 | 9.54 |
| 2019 | 11.39 | 14.6 | 8.63 |
| 2018 | 10.88 | 15.01 | 8.13 |
| 2017 | 18.03 | 27.77 | 13.11 |
| 2016 | 31.29 | 50.83 | 24.96 |
| 2015 | 47.08 | 85.99 | 21.22 |
| 2014 | 19.47 | 34.61 | 11.48 |
| 2013 | 12.06 | 15.84 | 10.44 |