| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 12.51 | 19.76 | 4.34 |
| 2024 | 16.24 | 25.4 | 10.79 |
| 2023 | 20.59 | 27.07 | 16.13 |
| 2022 | 12.47 | 21.32 | 5.14 |
| 2021 | 9.16 | 18.66 | 4.35 |
| 2020 | 25.78 | 30.85 | 18.24 |
| 2019 | 30.57 | 44.09 | 21.13 |
| 2018 | 30.94 | 39.55 | 21.54 |
| 2017 | 32.55 | 40.96 | 21.15 |
| 2016 | 20.72 | 42.35 | 12.41 |
| 2015 | 14.72 | 21.67 | 6.18 |
| 2014 | 7.16 | 12.6 | 4.08 |
| 2013 | 2.91 | 4.47 | 1.97 |
| 2012 | 3.09 | 3.79 | 2.35 |
| 2011 | 4.04 | 6.61 | 2.52 |
| 2010 | 6.47 | 8.24 | 5.5 |