| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 30.67 | 48.01 | 18.48 |
| 2024 | 13.52 | 34.83 | 6.37 |
| 2023 | 10.34 | 15.23 | 7.58 |
| 2022 | 11.13 | 23.36 | 6.94 |
| 2021 | 33.38 | 51.51 | 22.59 |
| 2020 | 24.21 | 34.18 | 18.45 |
| 2019 | 17.4 | 24.15 | 9.37 |
| 2018 | 10.61 | 13.11 | 7.53 |
| 2017 | 13.74 | 15.6 | 11.63 |
| 2016 | 15.83 | 21.62 | 11.79 |
| 2015 | 13.8 | 27.23 | 6.35 |
| 2014 | 6.37 | 8.72 | 4.87 |
| 2013 | 4.54 | 7.42 | 3.45 |
| 2012 | 3.66 | 4.28 | 3.15 |