| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2026 | 35.28 | 39.15 | 31.88 |
| 2025 | 24.59 | 51.18 | 4.35 |
| 2024 | 4.33 | 6.55 | 2.96 |
| 2023 | 7.37 | 10.93 | 5.07 |
| 2022 | 7.56 | 10.73 | 4.65 |
| 2021 | 7.82 | 10.31 | 5.08 |
| 2020 | 10.13 | 14.39 | 7.38 |
| 2019 | 6.27 | 8.91 | 3.72 |
| 2018 | 4.58 | 7.29 | 3.01 |
| 2017 | 7.72 | 13.16 | 5.03 |
| 2016 | 8.45 | 14.6 | 2.25 |
| 2015 | 3.91 | 5.15 | 2.08 |
| 2014 | 2.49 | 4.31 | 1.48 |
| 2013 | 3.79 | 7.13 | 1.98 |
| 2012 | 2.87 | 4.88 | 1.6 |
| 2011 | 4.01 | 5.75 | 2.65 |
| 2010 | 5.19 | 7.79 | 3.78 |