| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 9.99 | 11.07 | 8.63 |
| 2024 | 2.81 | 5.93 | 1.21 |
| 2023 | 2.06 | 2.69 | 1.14 |
| 2022 | 1.88 | 3.46 | 0.53 |
| 2021 | 0.74 | 1.36 | 0.5 |
| 2020 | 1.55 | 2.74 | 0.8 |
| 2019 | 3.97 | 6.57 | 1.98 |
| 2018 | 4.73 | 6.87 | 3.18 |
| 2017 | 10.81 | 14.78 | 6.44 |
| 2016 | 19.69 | 29.73 | 13.22 |
| 2015 | 31.14 | 68.71 | 16.26 |
| 2014 | 17.36 | 24.02 | 12.67 |
| 2013 | 12.94 | 15.62 | 9.76 |
| 2012 | 12.1 | 16.23 | 9.54 |