| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2018 | 10.31 | 17.4 | 5.03 |
| 2017 | 9.23 | 18.33 | 4.13 |
| 2016 | 250.06 | 292.35 | 202.12 |
| 2015 | 637.79 | 943.02 | 373.1 |
| 2014 | 54.85 | 71.8 | 39.9 |
| 2013 | 59.46 | 69.77 | 48.98 |
| 2012 | 26.53 | 34.31 | 20.04 |
| 2011 | 29.77 | 39.39 | 18.1 |
| 2010 | 28.19 | 44.15 | 19.35 |
| 2009 | 555.50 | 768.65 | 300.03 |
| 2008 | 12.36 | 18.34 | 6.51 |
| 2007 | 35.51 | 59.2 | 5.32 |