| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2024 | 14.42 | 17.17 | 11.2 |
| 2023 | 20.5 | 37.87 | 9.03 |
| 2022 | 9.85 | 12.76 | 7.98 |
| 2021 | 17.28 | 36.11 | 12.22 |
| 2020 | 21.14 | 29.99 | 12.78 |
| 2019 | 22.16 | 33.44 | 17.06 |
| 2018 | 15.64 | 22.99 | 10.31 |
| 2017 | 15.57 | 20.83 | 9.16 |
| 2016 | 10.15 | 14.47 | 8.88 |
| 2015 | 14.11 | 20.9 | 9.53 |
| 2014 | 5.68 | 10.18 | 4.36 |
| 2013 | 4.94 | 6.63 | 3.54 |
| 2012 | 7.71 | 13.37 | 4.72 |
| 2011 | 11.74 | 14.61 | 7.44 |
| 2010 | 8.12 | 11.24 | 5.87 |
| 2009 | 11.84 | 15.04 | 8.01 |
| 2008 | 12.93 | 35.26 | 6.3 |
| 2007 | 30.74 | 46.39 | 13.89 |
| 2006 | 10.05 | 14.71 | 6.82 |
| 2005 | 7.69 | 10.87 | 4.6 |
| 2004 | 9.3 | 13.88 | 6.2 |