时间 | 平均 | 最高 | 最低 |
---|---|---|---|
2019 | 8.43 | 9.35 | 7.66 |
2018 | 9.19 | 11.46 | 7.95 |
2017 | 14.18 | 18.14 | 9.84 |
2016 | 9.86 | 16.55 | 6.79 |
2015 | 11.20 | 14.96 | 8.37 |
2014 | 8.53 | 12.02 | 7.24 |
2013 | 9.01 | 10.73 | 7.28 |
2012 | 8.81 | 10.15 | 7.43 |
2011 | 10.83 | 13.21 | 8.89 |
2010 | 16.23 | 24.33 | 11.23 |
2009 | 20.80 | 27.32 | 15.1 |
2008 | 30.30 | 63.01 | 14.62 |
2007 | 47.38 | 69.54 | 34.87 |