| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 11.61 | 13.12 | 10.24 |
| 2024 | 12.1 | 16.99 | 8.88 |
| 2023 | 14.8 | 23.42 | 7.91 |
| 2022 | 5.87 | 9.09 | 4.39 |
| 2021 | 8.03 | 10.44 | 6.42 |
| 2020 | 10.76 | 14.96 | 8.7 |
| 2019 | 12.71 | 23.67 | 5.52 |
| 2018 | 7.08 | 9.29 | 4.67 |
| 2017 | 11.12 | 13.68 | 8.26 |
| 2016 | 13.14 | 15.73 | 9.44 |
| 2015 | 17.83 | 26.44 | 9.78 |
| 2014 | 20.38 | 28.96 | 15.18 |
| 2013 | 23.57 | 32.27 | 15.1 |