| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 38.19 | 55.04 | 26.67 |
| 2024 | 20.05 | 41.52 | 7.72 |
| 2023 | 8.82 | 12.05 | 6.48 |
| 2022 | 13.61 | 23.78 | 9.49 |
| 2021 | 20.76 | 32.14 | 14.75 |
| 2020 | 25.46 | 40.56 | 15.79 |
| 2019 | 13.9 | 18.96 | 10.81 |
| 2018 | 21.81 | 33.58 | 11.64 |
| 2017 | 30.84 | 45.08 | 22.6 |
| 2016 | 35.73 | 49.41 | 30.19 |
| 2015 | 45.91 | 86.34 | 30.92 |
| 2014 | 26.57 | 36.98 | 21.38 |
| 2013 | 29 | 38.5 | 22.65 |
| 2012 | 33.03 | 46.05 | 20.7 |
| 2011 | 39.8 | 52.07 | 30.84 |
| 2010 | 44.89 | 60.32 | 33.6 |
| 2009 | 39.88 | 53.25 | 26.8 |