| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2018 | 10.25 | 16.63 | 6.94 |
| 2017 | 10.36 | 13.85 | 6.95 |
| 2016 | 9.91 | 13.19 | 8.87 |
| 2015 | 112.17 | 160.5 | 83.9 |
| 2014 | 12.30 | 20.33 | 10.12 |
| 2013 | 12.90 | 15.24 | 10.96 |
| 2012 | 7.91 | 8.94 | 6.86 |
| 2011 | 14.30 | 17.89 | 11.08 |
| 2010 | 9.50 | 12.89 | 7.88 |
| 2009 | 20.88 | 30.41 | 14.81 |
| 2008 | 27.32 | 52.62 | 11.71 |
| 2007 | 18.42 | 29.31 | 11.3 |