| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 16.35 | 18.95 | 13.03 |
| 2024 | 23.64 | 48.27 | 12.64 |
| 2023 | 23.43 | 43.5 | 15.57 |
| 2022 | 23 | 40.11 | 14.76 |
| 2021 | 17.37 | 46.27 | 7.92 |
| 2020 | 12.22 | 18.39 | 8.47 |
| 2019 | 8.59 | 10.64 | 6.53 |
| 2018 | 8.61 | 13.18 | 5.52 |
| 2017 | 16.22 | 27.74 | 12.34 |
| 2016 | 32.62 | 45.34 | 20.02 |
| 2015 | 23.22 | 46.65 | 11.72 |
| 2014 | 16.71 | 29.7 | 9.32 |
| 2013 | 6.61 | 10.66 | 4.43 |
| 2012 | 5.01 | 5.98 | 4.1 |