| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 0 | ||
| 2024 | 0 | ||
| 2023 | 0 | ||
| 2022 | 5.09 | 6.31 | 3.66 |
| 2021 | 52.02 | 140.67 | 7.14 |
| 2020 | 15.8 | 22.39 | 8.66 |
| 2019 | 22.28 | 30.13 | 16.61 |
| 2018 | 23.49 | 36.89 | 14.93 |
| 2017 | 25.37 | 34.33 | 18.15 |
| 2016 | 26.41 | 42.64 | 9.66 |
| 2015 | 13.55 | 21.1 | 5.72 |
| 2014 | 19.74 | 30.03 | 11.17 |
| 2013 | 17.16 | 28.24 | 7.42 |
| 2012 | 7.35 | 10.7 | 5.97 |