| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2026 | 5.59 | 6.04 | 4.89 |
| 2025 | 4.75 | 6.15 | 3.72 |
| 2024 | 3.92 | 5.7 | 2.84 |
| 2023 | 5.93 | 7.26 | 5.11 |
| 2022 | 5.82 | 9.32 | 4.05 |
| 2021 | 59.74 | 147.76 | 5.31 |
| 2020 | 147.14 | 374.35 | 15.66 |
| 2019 | 8.99 | 18.85 | 4.92 |
| 2018 | 3.43 | 6.4 | 2.08 |
| 2017 | 11.82 | 17.78 | 6.29 |
| 2016 | 40.78 | 113.07 | 14.85 |
| 2015 | 38.88 | 132.06 | 14.8 |
| 2014 | 11.57 | 17.71 | 7.54 |
| 2013 | 6.86 | 9.8 | 4.78 |
| 2012 | 4.32 | 6.47 | 3.17 |
| 2011 | 4.5 | 5.21 | 3.27 |
| 2010 | 5.49 | 7.31 | 4 |
| 2009 | 4.2 | 6.88 | 2.06 |
| 2008 | 2.92 | 5.31 | 1.49 |