| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 0 | ||
| 2024 | 0 | ||
| 2023 | 0 | ||
| 2022 | 21.74 | 38.69 | 5.34 |
| 2021 | 27.89 | 57.82 | 9.5 |
| 2020 | 8.76 | 13.84 | 4.48 |
| 2019 | 4.9 | 11.88 | 2.18 |
| 2018 | 3.89 | 6.28 | 1.94 |
| 2017 | 7.79 | 10.48 | 5.23 |
| 2016 | 13.6 | 25.43 | 7.77 |
| 2015 | 14.71 | 30.25 | 5.48 |
| 2014 | 4.39 | 5.5 | 2.75 |
| 2013 | 3.32 | 4.17 | 2.64 |
| 2012 | 3.44 | 4.21 | 2.51 |
| 2011 | 4.35 | 5.49 | 2.79 |
| 2010 | 5.14 | 7.33 | 3.43 |
| 2009 | 5.39 | 8.14 | 2.04 |
| 2008 | 4.75 | 8.61 | 1.57 |
| 2007 | 4.18 | 6.34 | 1.73 |
| 2006 | 1.25 | 1.63 | 1.05 |
| 2005 | 1.33 | 1.83 | 0.91 |
| 2004 | 1.71 | 3.24 | 1.01 |