| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 7.57 | 9.55 | 2.9 |
| 2024 | 9.1 | 18.86 | 6.14 |
| 2023 | 10.7 | 15.27 | 5.72 |
| 2022 | 6.92 | 11.14 | 4.6 |
| 2021 | 11.33 | 16.46 | 7.25 |
| 2020 | 10.76 | 18.26 | 7.35 |
| 2019 | 18.44 | 34.2 | 9.52 |
| 2018 | 18.71 | 34.83 | 12.68 |
| 2017 | 23.13 | 38.49 | 14.85 |
| 2016 | 34.77 | 52.93 | 18.71 |
| 2015 | 28.25 | 61.3 | 11.92 |
| 2014 | 13.26 | 21.96 | 9.31 |
| 2013 | 14.43 | 26.52 | 3.12 |
| 2012 | 4.92 | 11.29 | 2.28 |
| 2011 | 6.09 | 12.86 | 2.72 |
| 2010 | 3.43 | 4.83 | 2.59 |
| 2009 | 6.07 | 8.58 | 4.37 |
| 2008 | 0 | ||
| 2007 | 0 | ||
| 2006 | 0 | ||
| 2005 | 0 | ||
| 2004 | 2.65 | 2.65 | 2.65 |