| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 12.93 | 15.28 | 10.35 |
| 2024 | 10.63 | 18.18 | 7.57 |
| 2023 | 11.91 | 15.78 | 8.3 |
| 2022 | 5.49 | 9.05 | 3.67 |
| 2021 | 4.1 | 6.38 | 2.73 |
| 2020 | 3.98 | 5.83 | 3.06 |
| 2019 | 3.99 | 4.79 | 3.13 |
| 2018 | 5.69 | 10.84 | 3.24 |
| 2017 | 14.74 | 17.79 | 10.58 |
| 2016 | 16.55 | 20.28 | 11.48 |
| 2015 | 17.63 | 30.37 | 9.08 |
| 2014 | 8.63 | 11.05 | 6.92 |
| 2013 | 7.46 | 9.77 | 4.97 |
| 2012 | 6.48 | 8.88 | 4.22 |
| 2011 | 7.76 | 8.78 | 6.62 |