| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2018 | 20.27 | 28.16 | 14.61 |
| 2017 | 17.98 | 28.25 | 13.18 |
| 2016 | 46.69 | 55.46 | 41.45 |
| 2015 | 79.13 | 123.8 | 59.94 |
| 2014 | 28.11 | 46.83 | 10.87 |
| 2013 | 13.14 | 15.8 | 11.66 |
| 2012 | 99.86 | 119.43 | 85.91 |
| 2011 | 58.40 | 69.91 | 40.74 |
| 2010 | 0.00 | -11.7 | |
| 2009 | 595.81 | 1077.04 | 182.38 |
| 2008 | 0.00 | -7.76 | |
| 2007 | 30.94 | 53.57 | 10.47 |