| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 11.29 | 23.37 | 8.99 |
| 2024 | 4.32 | 11.5 | 1.99 |
| 2023 | 2.36 | 2.97 | 1.89 |
| 2022 | 2 | 2.36 | 1.32 |
| 2021 | 1.71 | 2.6 | 0.74 |
| 2020 | 1.16 | 1.69 | 0.85 |
| 2019 | 1.09 | 1.78 | 0.57 |
| 2018 | 1.11 | 1.48 | 0.6 |
| 2017 | 1.39 | 1.71 | 1.19 |
| 2016 | 1.54 | 2.29 | 1.31 |
| 2015 | 2.42 | 4.27 | 1.74 |
| 2014 | 2.32 | 2.94 | 1.87 |
| 2013 | 2.38 | 3.38 | 1.82 |
| 2012 | 2.36 | 4.06 | 1.47 |
| 2011 | 4.93 | 10.91 | 2.81 |
| 2010 | 9.62 | 11.81 | 6.86 |
| 2009 | 5.7 | 8.81 | 1.4 |
| 2008 | 2.49 | 4.95 | 1.06 |
| 2007 | 2.64 | 4.57 | 1.17 |
| 2006 | 1.22 | 1.58 | 0.94 |
| 2005 | 1.33 | 1.99 | 0.88 |
| 2004 | 3.88 | 10.92 | 1.83 |