| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 22.14 | 24.57 | 18.93 |
| 2024 | 22.26 | 36.28 | 15.27 |
| 2023 | 20.2 | 29.87 | 14.74 |
| 2022 | 29.03 | 45.98 | 21.72 |
| 2021 | 20.79 | 39.09 | 3.49 |
| 2020 | 8.35 | 17.31 | 4.19 |
| 2019 | 11.41 | 15.42 | 9.34 |
| 2018 | 9.82 | 15.97 | 5.91 |
| 2017 | 10.18 | 11.5 | 9.01 |
| 2016 | 13.33 | 32.5 | 9.38 |
| 2015 | 10.36 | 40.02 | 6.27 |
| 2014 | 5.68 | 8.71 | 4.02 |
| 2013 | 8.01 | 11.56 | 3.91 |
| 2012 | 9.25 | 15.33 | 5.58 |
| 2011 | 14.35 | 21.5 | 4.59 |
| 2010 | 8.28 | 18.66 | 4.71 |
| 2009 | 11.67 | 20.84 | 3.51 |
| 2008 | 3.83 | 6.04 | 2.31 |
| 2007 | 25.41 | 206.09 | 4.71 |
| 2006 | 21.78 | 87.58 | 3.98 |
| 2005 | 4.39 | 7.76 | 2.29 |
| 2004 | 3.64 | 4.4 | 3.42 |