| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 1.9 | 2.33 | 1.5 |
| 2024 | 1.56 | 2.65 | 1.13 |
| 2023 | 1.81 | 2.56 | 1.35 |
| 2022 | 1.92 | 3.15 | 1.38 |
| 2021 | 3.92 | 5.75 | 2.61 |
| 2020 | 6.81 | 8.36 | 5.37 |
| 2019 | 11.81 | 21.1 | 7.4 |
| 2018 | 293.7 | 695.83 | 10.86 |
| 2017 | 119.29 | 298.7 | 31.13 |
| 2016 | 24.58 | 40.77 | 10.33 |
| 2015 | 11.46 | 21.39 | 7.15 |
| 2014 | 6.19 | 8.52 | 3.78 |
| 2013 | 3.57 | 4.27 | 2.89 |
| 2012 | 4.25 | 6.04 | 2.5 |
| 2011 | 5.86 | 7.23 | 4.74 |