| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 7.28 | 9.17 | 6.44 |
| 2024 | 10.57 | 16.21 | 6.25 |
| 2023 | 14.18 | 17.58 | 10.28 |
| 2022 | 10.03 | 18.02 | 6.61 |
| 2021 | 5.85 | 10.25 | 2.16 |
| 2020 | 5.37 | 7.21 | 2.9 |
| 2019 | 5.24 | 6.51 | 4.18 |
| 2018 | 15.19 | 33.38 | 4.3 |
| 2017 | 45.4 | 55.15 | 33.38 |
| 2016 | 44.63 | 61.8 | 29.43 |
| 2015 | 36.99 | 63.96 | 16.03 |
| 2014 | 14.65 | 19.57 | 11.54 |
| 2013 | 16.19 | 20.46 | 13.29 |
| 2012 | 17.77 | 23.22 | 11.85 |
| 2011 | 29.61 | 43.49 | 16.61 |
| 2010 | 17.65 | 34.46 | 12.43 |
| 2009 | 11.12 | 15.85 | 4.96 |
| 2008 | 7.7 | 16.28 | 2.75 |
| 2007 | 12.31 | 14.36 | 4 |