| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2024 | 2.37 | 3.36 | 1.44 |
| 2023 | 7.53 | 13.42 | 3.12 |
| 2022 | 13.08 | 15.73 | 9.11 |
| 2021 | 15.82 | 23.02 | 11.18 |
| 2020 | 10.48 | 13.9 | 7.84 |
| 2019 | 6.67 | 8.13 | 4.59 |
| 2018 | 8.54 | 14.01 | 4.48 |
| 2017 | 11.85 | 16.86 | 9.05 |
| 2016 | 15.3 | 26.5 | 10.75 |
| 2015 | 54.85 | 78.81 | 28.03 |
| 2014 | 38.09 | 56.64 | 15.22 |
| 2013 | 13.13 | 21.49 | 7.61 |