| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 11.29 | 14.75 | 9.11 |
| 2024 | 10.41 | 18.04 | 6.92 |
| 2023 | 10.65 | 13.91 | 8.54 |
| 2022 | 9.77 | 13.87 | 6.87 |
| 2021 | 7.88 | 10.69 | 5.72 |
| 2020 | 15.03 | 18.42 | 10.56 |
| 2019 | 11.01 | 17.79 | 7.89 |
| 2018 | 10.56 | 17.52 | 6.36 |
| 2017 | 17.98 | 23.8 | 14.1 |
| 2016 | 18.76 | 24.92 | 12.59 |
| 2015 | 14.9 | 26.29 | 8.46 |
| 2014 | 7.77 | 10.57 | 5.2 |
| 2013 | 4.78 | 6.03 | 3.87 |
| 2012 | 4.83 | 6.4 | 3.68 |
| 2011 | 6.82 | 10.05 | 4.64 |
| 2010 | 5.74 | 6.89 | 4.57 |
| 2009 | 4.47 | 6.2 | 3.14 |
| 2008 | 3.94 | 6.5 | 2.22 |
| 2007 | 5.24 | 6.84 | 4.29 |