| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 27.76 | 34.02 | 24.6 |
| 2024 | 22.32 | 34.28 | 15.03 |
| 2023 | 16.88 | 26.07 | 10.87 |
| 2022 | 20.63 | 37.25 | 11.83 |
| 2021 | 8.2 | 21.33 | 5.34 |
| 2020 | 9.13 | 14.42 | 5.37 |
| 2019 | 6.48 | 9.37 | 5.12 |
| 2018 | 10.35 | 16.84 | 6.04 |
| 2017 | 15.97 | 18.1 | 14.4 |
| 2016 | 22.8 | 33.33 | 17.44 |
| 2015 | 45.7 | 94.45 | 26.02 |
| 2014 | 34.57 | 40.72 | 27.03 |
| 2013 | 22.98 | 32.42 | 12.98 |
| 2012 | 17.1 | 21.83 | 11.5 |