| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 36.49 | 43.95 | 29.77 |
| 2024 | 25.6 | 49.79 | 13.33 |
| 2023 | 18.65 | 30.11 | 7.14 |
| 2022 | 8.02 | 10.37 | 5.78 |
| 2021 | 7.71 | 9.12 | 6.13 |
| 2020 | 9.72 | 12.2 | 7.05 |
| 2019 | 8.49 | 10.7 | 6.68 |
| 2018 | 10.41 | 15.4 | 6.62 |
| 2017 | 14.63 | 20.19 | 11 |
| 2016 | 23.18 | 29.85 | 18.09 |
| 2015 | 39.5 | 84.5 | 16.89 |
| 2014 | 21.72 | 34.89 | 14.55 |
| 2013 | 11.41 | 17.43 | 6.5 |
| 2012 | 8.4 | 10.78 | 5.68 |
| 2011 | 11.8 | 14.44 | 8.93 |