| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2024 | 3.03 | 4.02 | 2.18 |
| 2023 | 8.39 | 15.01 | 3.93 |
| 2022 | 10.87 | 15.19 | 8.43 |
| 2021 | 19.24 | 27.84 | 14.77 |
| 2020 | 19.04 | 26.04 | 11.55 |
| 2019 | 11.46 | 14.17 | 8.39 |
| 2018 | 11.51 | 14.38 | 8.55 |
| 2017 | 9.44 | 11.51 | 7.74 |
| 2016 | 9.68 | 12.01 | 7.78 |
| 2015 | 15.45 | 24.17 | 9.64 |
| 2014 | 13.5 | 18.91 | 10.28 |
| 2013 | 10.79 | 14.06 | 8.56 |
| 2012 | 10.78 | 14.19 | 7.42 |
| 2011 | 18.34 | 24.33 | 12.6 |