| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2024 | 2.07 | 4.09 | 1.29 |
| 2023 | 5.02 | 13.26 | 1.67 |
| 2022 | 17.95 | 31.84 | 9.62 |
| 2021 | 30.01 | 62.8 | 14.27 |
| 2020 | 8.51 | 17.23 | 4.35 |
| 2019 | 5.65 | 8.44 | 4.43 |
| 2018 | 9.1 | 14.22 | 5.02 |
| 2017 | 12.69 | 17.67 | 9.67 |
| 2016 | 16.91 | 25.25 | 9.69 |
| 2015 | 13.01 | 24.74 | 5.78 |
| 2014 | 20.87 | 36.02 | 10.16 |
| 2013 | 13.33 | 17.69 | 10.8 |
| 2012 | 10.79 | 12.83 | 8.52 |
| 2011 | 15.05 | 18.94 | 10.06 |