| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2026 | 5.26 | 6.18 | 4.34 |
| 2025 | 6.76 | 8.93 | 5.14 |
| 2024 | 3.23 | 10.12 | 1.95 |
| 2023 | 3.81 | 6.54 | 3.01 |
| 2022 | 3.06 | 5.03 | 2.42 |
| 2021 | 3.71 | 4.42 | 2.98 |
| 2020 | 4.8 | 6.26 | 4.08 |
| 2019 | 4.97 | 7.17 | 3.78 |
| 2018 | 5.22 | 7.13 | 3.9 |
| 2017 | 8.71 | 13.47 | 6.4 |
| 2016 | 19.34 | 31.17 | 13.23 |
| 2015 | 51.93 | 122.68 | 19.75 |