| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 5.86 | 6.57 | 4.8 |
| 2024 | 4.84 | 7.33 | 3.55 |
| 2023 | 9.43 | 18.58 | 5.09 |
| 2022 | 15.75 | 29.52 | 10.07 |
| 2021 | 29.92 | 48.48 | 19.04 |
| 2020 | 66.06 | 96.49 | 45.37 |
| 2019 | 30.93 | 91.21 | 2.07 |
| 2018 | 2.55 | 3.15 | 1.89 |
| 2017 | 3.66 | 4.84 | 2.99 |
| 2016 | 4.48 | 5.56 | 4.16 |
| 2015 | 6.04 | 11.19 | 4.01 |
| 2014 | 3.84 | 4.87 | 3.23 |
| 2013 | 3.89 | 6.18 | 2.4 |
| 2012 | 2.92 | 4.61 | 1.89 |
| 2011 | 5.52 | 7.82 | 4.12 |