| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2026 | 13.68 | 15.73 | 10.58 |
| 2025 | 13.37 | 20.2 | 9.81 |
| 2024 | 1.99 | 13.15 | 0.49 |
| 2023 | 0.94 | 1.39 | 0.49 |
| 2022 | 0.61 | 0.85 | 0.49 |
| 2021 | 0.6 | 0.7 | 0.47 |
| 2020 | 0.96 | 1.62 | 0.57 |
| 2019 | 1.11 | 1.41 | 0.77 |
| 2018 | 1.57 | 2.46 | 0.77 |
| 2017 | 2.58 | 3.33 | 2.04 |
| 2016 | 3.62 | 5.79 | 2.37 |
| 2015 | 5.41 | 8.52 | 3.72 |
| 2014 | 4.42 | 6.93 | 1.52 |
| 2013 | 1.31 | 1.76 | 1.07 |
| 2012 | 1.3 | 1.76 | 1 |
| 2011 | 2.64 | 3.85 | 1.33 |
| 2010 | 4.32 | 6.46 | 2.97 |
| 2009 | 3.63 | 6.95 | 2.52 |