| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2018 | 16.40 | 29.02 | 9.26 |
| 2017 | 15.07 | 21.91 | 12.19 |
| 2016 | 13.82 | 16.74 | 11.38 |
| 2015 | 22.73 | 40.74 | 11.42 |
| 2014 | 15.98 | 32.84 | 12.51 |
| 2013 | 16.55 | 21.81 | 13.21 |
| 2012 | 16.04 | 20.47 | 12.25 |
| 2011 | 14.61 | 19.6 | 8.84 |
| 2010 | 11.35 | 19.89 | 8.05 |
| 2009 | 106.13 | 145.09 | 60.11 |
| 2008 | 0.00 | -3.7 | |
| 2007 | 32.82 | 67.86 | 10.06 |