| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2022 | 4.03 | 4.8686 | 3.1086 |
| 2021 | 4.15 | 5.4387 | 2.7558 |
| 2020 | 2.19 | 3.2674 | 1.6124 |
| 2019 | 1.57 | 1.7579 | 1.4597 |
| 2018 | 1.7 | 1.9512 | 1.4235 |
| 2017 | 1.86 | 2.0291 | 1.7059 |
| 2016 | 2.03 | 2.3319 | 1.8397 |
| 2015 | 2.4 | 3.5376 | 1.6784 |
| 2014 | 1.53 | 1.7924 | 1.3500 |
| 2013 | 1.25 | 1.4196 | 1.0382 |
| 2012 | 1.04 | 1.0928 | 0.9234 |