| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 12.14 | 15.21 | 9.54 |
| 2024 | 8.73 | 16.95 | 5.78 |
| 2023 | 10.47 | 14.45 | 8.06 |
| 2022 | 12.82 | 28.34 | 7.82 |
| 2021 | 12.95 | 29.2 | 9.04 |
| 2020 | 9.78 | 12.8 | 7.36 |
| 2019 | 7.91 | 11.63 | 5.73 |
| 2018 | 10.7 | 15.01 | 6.57 |
| 2017 | 15.74 | 20.33 | 11.39 |
| 2016 | 14.53 | 19.46 | 11.2 |
| 2015 | 9.16 | 17.93 | 4.6 |
| 2014 | 2.44 | 4.95 | 1.46 |
| 2013 | 1.55 | 2.43 | 0.83 |
| 2012 | 1.14 | 1.87 | 0.72 |
| 2011 | 1.37 | 1.73 | 1.15 |