| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2024 | 9.32 | 16.74 | 6.6 |
| 2023 | 6.28 | 13.29 | 2.02 |
| 2022 | 2.29 | 2.94 | 1.5 |
| 2021 | 2.89 | 3.94 | 2.2 |
| 2020 | 4.71 | 6.9 | 3.48 |
| 2019 | 3.34 | 5.45 | 2.25 |
| 2018 | 4.76 | 6.82 | 2.34 |
| 2017 | 6.06 | 7.84 | 4.91 |
| 2016 | 5.07 | 6.54 | 3.36 |
| 2015 | 4.88 | 9.43 | 2.88 |
| 2014 | 5.99 | 7.82 | 3.29 |
| 2013 | 8.57 | 19.64 | 6.21 |
| 2012 | 5.5 | 7.39 | 2.89 |
| 2011 | 4.74 | 6.59 | 3.64 |