| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 11.95 | 16.21 | 9.08 |
| 2024 | 8.95 | 12.97 | 5.7 |
| 2023 | 10.47 | 15.45 | 4.95 |
| 2022 | 6.14 | 10.38 | 4.56 |
| 2021 | 5.35 | 7.11 | 4.44 |
| 2020 | 7.23 | 9.37 | 5.72 |
| 2019 | 6.76 | 10.73 | 4.69 |
| 2018 | 6.6 | 9.1 | 5.07 |
| 2017 | 10.34 | 16.64 | 7.45 |
| 2016 | 17.96 | 28.13 | 13.59 |
| 2015 | 23.91 | 41.57 | 13.69 |
| 2014 | 11.03 | 19.32 | 7.77 |
| 2013 | 6.54 | 8.52 | 4.87 |
| 2012 | 7.18 | 10.13 | 5.03 |