| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 13.75 | 19.14 | 11.9 |
| 2024 | 14.79 | 18.92 | 11.41 |
| 2023 | 15.29 | 21.32 | 9.92 |
| 2022 | 12.15 | 23.3 | 7.07 |
| 2021 | 10.9 | 17.01 | 7.41 |
| 2020 | 12.75 | 19.11 | 8.99 |
| 2019 | 12.05 | 17.54 | 10.3 |
| 2018 | 13.62 | 16.96 | 9.94 |
| 2017 | 22.02 | 26.68 | 15.44 |
| 2016 | 22.72 | 31.61 | 18.82 |
| 2015 | 29.32 | 58 | 13.52 |
| 2014 | 13.84 | 16.5 | 11.89 |
| 2013 | 13.5 | 18.45 | 11 |
| 2012 | 17.01 | 24.48 | 11.75 |
| 2011 | 0 | ||
| 2010 | 3.15 | 3.69 | 2.63 |
| 2009 | 2.97 | 4.96 | 1.35 |
| 2008 | 2.72 | 5.19 | 1.06 |
| 2007 | 3.88 | 6.06 | 1.64 |
| 2006 | 1.5 | 1.89 | 1.1 |
| 2005 | 0.99 | 1.33 | 0.57 |
| 2004 | 1.67 | 2.97 | 0.76 |