| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 0 | ||
| 2024 | 0 | ||
| 2023 | 0 | ||
| 2022 | 16.84 | 26.6 | 5.03 |
| 2021 | 26.51 | 35.52 | 19.04 |
| 2020 | 16.79 | 24.95 | 7.22 |
| 2019 | 10.36 | 20.13 | 6.23 |
| 2018 | 16.12 | 32.07 | 8.02 |
| 2017 | 38.51 | 62.1 | 23.87 |
| 2016 | 41.71 | 49.83 | 34.02 |
| 2015 | 27.07 | 66.09 | 15.71 |
| 2014 | 19.48 | 25.09 | 14.51 |
| 2013 | 16.58 | 21.66 | 12.15 |
| 2012 | 9.39 | 17.4 | 5.89 |
| 2011 | 12.98 | 18.77 | 6.34 |
| 2010 | 19.33 | 31.85 | 12.28 |
| 2009 | 9.18 | 13.25 | 3.43 |
| 2008 | 5.55 | 11.42 | 2.22 |
| 2007 | 10.21 | 18.74 | 5.49 |
| 2006 | 6.64 | 9.92 | 4.95 |
| 2005 | 3.78 | 5.54 | 1.56 |
| 2004 | 3.68 | 5.83 | 2.68 |