| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 16.87 | 19.83 | 10.01 |
| 2024 | 9.36 | 21.13 | 5.27 |
| 2023 | 10.49 | 15.76 | 7.87 |
| 2022 | 9.36 | 17.72 | 3.09 |
| 2021 | 4.08 | 5.26 | 3.23 |
| 2020 | 3.53 | 4.37 | 2.73 |
| 2019 | 4.17 | 5.84 | 3.34 |
| 2018 | 5.59 | 9.11 | 4.07 |
| 2017 | 8.84 | 10.38 | 7.75 |
| 2016 | 10.97 | 15.19 | 7.29 |
| 2015 | 11.35 | 22.67 | 7.29 |
| 2014 | 8.18 | 12.03 | 5.91 |
| 2013 | 5.02 | 6.91 | 4.05 |
| 2012 | 4.24 | 5.32 | 3.46 |
| 2011 | 6.01 | 9.15 | 3.93 |