| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2022 | 5.9 | 6.4960 | 5.5112 |
| 2021 | 6.57 | 7.0470 | 6.3326 |
| 2020 | 5.78 | 6.5201 | 5.0027 |
| 2019 | 4.84 | 5.1881 | 4.2240 |
| 2018 | 4.66 | 4.9403 | 4.2648 |
| 2017 | 4.56 | 4.9029 | 4.2921 |
| 2016 | 4.32 | 4.5940 | 3.9971 |
| 2015 | 4.46 | 5.4950 | 3.6731 |
| 2014 | 3.38 | 3.7863 | 3.1950 |
| 2013 | 3.2 | 3.3930 | 3.0388 |
| 2012 | 3.02 | 3.1294 | 2.8611 |
| 2011 | 3.28 | 3.4412 | 2.9714 |
| 2010 | 3.12 | 3.4580 | 2.8745 |
| 2009 | 2.83 | 3.1658 | 2.4361 |
| 2008 | 2.74 | 3.4272 | 2.2755 |
| 2007 | 2.74 | 3.2977 | 2.2021 |
| 2006 | 1.53 | 2.2431 | 1.0339 |
| 2005 | 1.01 | 1.0280 | 0.9988 |