| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2022 | 2.18 | 2.2290 | 2.1000 |
| 2021 | 2.01 | 2.1810 | 1.7540 |
| 2020 | 1.84 | 1.9290 | 1.6840 |
| 2019 | 1.53 | 1.6900 | 1.4350 |
| 2018 | 1.42 | 1.4480 | 1.4010 |
| 2017 | 1.41 | 1.4570 | 1.3920 |
| 2016 | 1.4 | 1.4210 | 1.3740 |
| 2015 | 1.32 | 1.3790 | 1.2680 |
| 2014 | 1.18 | 1.2800 | 1.1000 |
| 2013 | 1.13 | 1.1490 | 1.0790 |
| 2012 | 1.04 | 1.0760 | 1.0050 |