| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 10.23 | 12.67 | 7.84 |
| 2024 | 5.41 | 16.68 | 3.53 |
| 2023 | 8.43 | 12.63 | 5.83 |
| 2022 | 12.15 | 15.44 | 9.88 |
| 2021 | 5.59 | 5.81 | 5.33 |
| 2020 | 6.61 | 9.89 | 2.93 |
| 2019 | 3.16 | 6.8 | 2.06 |
| 2018 | 3.39 | 4.88 | 2.36 |
| 2017 | 6.96 | 9.18 | 4.48 |
| 2016 | 10.66 | 18.12 | 8.16 |
| 2015 | 13.09 | 26.02 | 4.44 |
| 2014 | 3.92 | 5.74 | 2.66 |
| 2013 | 3.39 | 4.98 | 2.54 |
| 2012 | 3.08 | 3.73 | 2.35 |
| 2011 | 4.41 | 5.55 | 3.19 |
| 2010 | 4.88 | 6.78 | 3.74 |
| 2009 | 3.62 | 4.91 | 2.27 |
| 2008 | 2.96 | 4.86 | 1.52 |