| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 0 | ||
| 2024 | 0 | ||
| 2023 | 41.72 | 68.02 | 18.59 |
| 2022 | 40.36 | 76.57 | 1.94 |
| 2021 | 17.12 | 52.38 | 2.05 |
| 2020 | 24.84 | 52.21 | 11.61 |
| 2019 | 20.39 | 42.51 | 11.81 |
| 2018 | 35.19 | 48.46 | 19.73 |
| 2017 | 31.01 | 61.14 | 6.61 |
| 2016 | 6.39 | 8.31 | 4.27 |
| 2015 | 6.56 | 13.22 | 3.85 |
| 2014 | 2.6 | 4.5 | 1.66 |
| 2013 | 1.92 | 2.94 | 1.3 |
| 2012 | 1.58 | 2.4 | 1.21 |
| 2011 | 1.53 | 1.9 | 1.27 |
| 2010 | 2.16 | 3.84 | 1.33 |
| 2009 | 4.2 | 6.56 | 2.1 |
| 2008 | 2.43 | 4.35 | 1.22 |
| 2007 | 3.35 | 4.53 | 2.34 |
| 2006 | 2.47 | 4.09 | 0.75 |
| 2005 | 0.68 | 1.22 | 0.35 |
| 2004 | 1.16 | 3.32 | 0.67 |