| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 21.66 | 31.6 | 17.75 |
| 2024 | 18.13 | 24.39 | 11.47 |
| 2023 | 19.18 | 25.68 | 13.67 |
| 2022 | 15.82 | 25.71 | 11.35 |
| 2021 | 11.43 | 14.5 | 8.54 |
| 2020 | 49.8 | 115.84 | 10.57 |
| 2019 | 107.38 | 228.4 | 3.19 |
| 2018 | 4.12 | 5.76 | 2.94 |
| 2017 | 7.18 | 13.8 | 4.46 |
| 2016 | 11.93 | 18.98 | 9.23 |
| 2015 | 7.71 | 14.57 | 5.21 |
| 2014 | 6.27 | 7.66 | 4.17 |
| 2013 | 4.12 | 5.7 | 3.17 |
| 2012 | 3.79 | 4.76 | 2.54 |
| 2011 | 4.85 | 6.25 | 3.5 |
| 2010 | 6.52 | 8.26 | 5.44 |
| 2009 | 5.94 | 7.61 | 3.22 |