| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2024 | 0 | ||
| 2023 | 0 | ||
| 2022 | 0 | ||
| 2021 | 21.5 | 30.88 | 16.73 |
| 2020 | 55.13 | 102.04 | 28.82 |
| 2019 | 73.59 | 112.75 | 31.39 |
| 2018 | 28.24 | 57.91 | 2.49 |
| 2017 | 6.19 | 12.79 | 3.28 |
| 2016 | 6.52 | 13.45 | 3.19 |
| 2015 | 188.69 | 551.08 | 6.02 |
| 2014 | 42.04 | 126.13 | 3.84 |
| 2013 | 5.78 | 16.31 | 3.55 |
| 2012 | 4.8 | 9.81 | 2.2 |
| 2011 | 5.21 | 8.99 | 2.27 |
| 2010 | 6.28 | 8.43 | 4.65 |
| 2009 | 5.58 | 9.28 | 3.43 |
| 2008 | 7.37 | 14.1 | 2.64 |
| 2007 | 11.53 | 18.69 | 4.08 |
| 2006 | 3.52 | 4.73 | 2.32 |
| 2005 | 3.3 | 4.19 | 2.46 |
| 2004 | 4.3 | 5.76 | 2.57 |