| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2022 | 3.95 | 4.6780 | 3.2820 |
| 2021 | 4.9 | 6.1290 | 4.1980 |
| 2020 | 3.67 | 5.2740 | 2.5860 |
| 2019 | 2.64 | 3.0570 | 1.7360 |
| 2018 | 2.17 | 2.5630 | 1.7130 |
| 2017 | 1.85 | 2.3560 | 1.4210 |
| 2016 | 1.29 | 1.4960 | 1.0470 |
| 2015 | 1.29 | 1.6880 | 1.0420 |
| 2014 | 0.93 | 1.0590 | 0.8310 |
| 2013 | 0.89 | 1.0280 | 0.8110 |
| 2012 | 0.84 | 0.9110 | 0.7290 |
| 2011 | 0.94 | 1.0110 | 0.8170 |
| 2010 | 1.01 | 1.0580 | 0.9520 |