| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2024 | 10.49 | 11.59 | 9.31 |
| 2023 | 11.05 | 13.77 | 9.52 |
| 2022 | 10.17 | 11.67 | 7.04 |
| 2021 | 9.49 | 11.19 | 8.54 |
| 2020 | 10.35 | 13.89 | 6.69 |
| 2019 | 27.42 | 50.7 | 10.53 |
| 2018 | 22.3 | 27.5 | 15.01 |
| 2017 | 16.95 | 25.95 | 12.9 |
| 2016 | 11.36 | 16.43 | 8.79 |
| 2015 | 21.66 | 38.29 | 9.91 |
| 2014 | 19.74 | 33.06 | 15.28 |
| 2013 | 21.03 | 25.43 | 16.62 |
| 2012 | 19.2 | 26.4 | 12.55 |
| 2011 | 18.05 | 23.47 | 11.7 |
| 2010 | 24.7 | 40.09 | 17.32 |
| 2009 | 207.42 | 895.46 | 32.74 |
| 2008 | 43.51 | 79.82 | 22.66 |
| 2007 | 13.32 | 32.65 | 10.11 |
| 2006 | 31.68 | 64.32 | 12.41 |