| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 12.09 | 13.56 | 9.9 |
| 2024 | 9.38 | 15.12 | 6.67 |
| 2023 | 12.49 | 16.39 | 9.76 |
| 2022 | 11.97 | 17.51 | 9.54 |
| 2021 | 11.18 | 15.03 | 7.57 |
| 2020 | 5.57 | 11.72 | 2.89 |
| 2019 | 3.95 | 6.19 | 2.02 |
| 2018 | 2.29 | 2.84 | 1.81 |
| 2017 | 3.06 | 3.65 | 2.69 |
| 2016 | 3.02 | 3.68 | 2.81 |
| 2015 | 4.55 | 8.5 | 3.09 |
| 2014 | 4.04 | 6.29 | 3.11 |
| 2013 | 4 | 6.31 | 2.38 |
| 2012 | 2.45 | 3.02 | 1.86 |
| 2011 | 3.6 | 5.57 | 2.7 |