| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2024 | 4.29 | 5.81 | 3.21 |
| 2023 | 8.05 | 12.58 | 4.83 |
| 2022 | 16.04 | 20.51 | 11.43 |
| 2021 | 17.62 | 26.4 | 12.21 |
| 2020 | 12.28 | 21.63 | 7.29 |
| 2019 | 6.96 | 9.36 | 4.69 |
| 2018 | 7.25 | 10.17 | 4.67 |
| 2017 | 6.14 | 9.48 | 4.43 |
| 2016 | 8.79 | 13.02 | 5.94 |
| 2015 | 9.42 | 15.04 | 5.8 |
| 2014 | 6.4 | 8.41 | 4.88 |
| 2013 | 5.39 | 7.46 | 3.63 |
| 2012 | 6.81 | 12.25 | 3.81 |
| 2011 | 6.68 | 9 | 5.26 |
| 2010 | 4.71 | 9.26 | 3.69 |
| 2009 | 2.77 | 3.78 | 1.68 |
| 2008 | 2.22 | 3.99 | 1.17 |
| 2007 | 3.99 | 6.86 | 2.77 |
| 2006 | 3.67 | 4.37 | 2.34 |