| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 10.19 | 11.65 | 9.07 |
| 2024 | 4.41 | 12.38 | 2.3 |
| 2023 | 23.09 | 35.99 | 4.12 |
| 2022 | 31.64 | 50.51 | 24.77 |
| 2021 | 20.08 | 34.56 | 9.66 |
| 2020 | 5.35 | 10.95 | 2.66 |
| 2019 | 3.14 | 3.84 | 2.54 |
| 2018 | 1.67 | 2.95 | 1.13 |
| 2017 | 2.59 | 3.69 | 1.48 |
| 2016 | 3.27 | 4.48 | 1.37 |
| 2015 | 2.17 | 3.24 | 1.54 |
| 2014 | 2.11 | 4.48 | 1.31 |
| 2013 | 2.63 | 3.89 | 1.81 |
| 2012 | 2.18 | 2.98 | 1.47 |
| 2011 | 5.17 | 14.79 | 1.72 |
| 2010 | 9.34 | 12.85 | 5.77 |
| 2009 | 9.31 | 15.33 | 6.96 |
| 2008 | 0 | ||
| 2007 | 0 | ||
| 2006 | 0.58 | 0.69 | 0.38 |
| 2005 | 0.49 | 0.76 | 0.29 |
| 2004 | 0.92 | 1.59 | 0.44 |