| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2023 | 12.44 | 17.26 | 10.3 |
| 2022 | 12.81 | 18 | 9.47 |
| 2021 | 19.76 | 30.25 | 14.89 |
| 2020 | 21.16 | 31.41 | 15.2 |
| 2019 | 21.29 | 26.37 | 17.38 |
| 2018 | 31.72 | 43.98 | 17.29 |
| 2017 | 43.51 | 48.86 | 39.57 |
| 2016 | 43.53 | 65.27 | 36.87 |
| 2015 | 52.13 | 84.44 | 32.4 |
| 2014 | 26.12 | 38.1 | 19.87 |
| 2013 | 22.91 | 30.8 | 18 |