| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2022 | 6.33 | 6.9850 | 5.5540 |
| 2021 | 6.27 | 7.0120 | 5.5140 |
| 2020 | 5.18 | 5.9220 | 4.3920 |
| 2019 | 3.91 | 4.4640 | 3.1690 |
| 2018 | 3.44 | 3.7040 | 3.1220 |
| 2017 | 2.98 | 3.2440 | 2.7810 |
| 2016 | 2.66 | 3.0240 | 2.2490 |
| 2015 | 2.32 | 3.0850 | 1.6550 |
| 2014 | 1.29 | 1.6280 | 1.1530 |
| 2013 | 1.17 | 1.2400 | 1.0810 |
| 2012 | 1.11 | 1.1890 | 0.9830 |
| 2011 | 1.11 | 1.1340 | 1.0910 |
| 2010 | 1.09 | 1.1460 | 1.0550 |
| 2009 | 1.04 | 1.0750 | 1.0070 |