| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 9.92 | 12.5 | 5.8 |
| 2024 | 8.49 | 18.78 | 4.27 |
| 2023 | 14.1 | 32.94 | 4.73 |
| 2022 | 27.42 | 45.53 | 12.57 |
| 2021 | 10.32 | 23.17 | 3.48 |
| 2020 | 4.46 | 6.48 | 2.93 |
| 2019 | 2.72 | 4.15 | 1.63 |
| 2018 | 2.89 | 5.56 | 1.62 |
| 2017 | 10.49 | 16 | 5.29 |
| 2016 | 15.62 | 19.92 | 12.09 |
| 2015 | 12.18 | 25.24 | 4.96 |
| 2014 | 5.24 | 7.88 | 3.75 |
| 2013 | 3.68 | 4.53 | 3.01 |
| 2012 | 4.25 | 5.2 | 3.29 |
| 2011 | 8.21 | 12.38 | 4.43 |