| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 7.77 | 8.6 | 6.79 |
| 2024 | 10.67 | 18.08 | 6.98 |
| 2023 | 11.46 | 13.99 | 8.88 |
| 2022 | 12.02 | 25.84 | 8.64 |
| 2021 | 12.3 | 19.97 | 8.86 |
| 2020 | 19.82 | 31.2 | 10.63 |
| 2019 | 10.85 | 13.85 | 9.39 |
| 2018 | 9.9 | 11.16 | 8.4 |
| 2017 | 8.76 | 10.52 | 6.66 |
| 2016 | 8.77 | 10.73 | 6.74 |
| 2015 | 15.71 | 19.72 | 9.57 |
| 2014 | 10.42 | 14.93 | 8 |
| 2013 | 50.48 | 527.1 | 13.88 |
| 2012 | 0 | ||
| 2011 | 0 | ||
| 2010 | 0 | ||
| 2009 | 0 | ||
| 2008 | 0 | ||
| 2007 | 58.85 | 58.89 | 58.38 |
| 2006 | 1.15 | 2.39 | 0.31 |
| 2005 | 0.55 | 0.75 | 0.32 |
| 2004 | 0.95 | 1.86 | 0.59 |