| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 4.05 | 4.38 | 3.66 |
| 2024 | 3.91 | 7.06 | 2.51 |
| 2023 | 3.68 | 4.49 | 2.82 |
| 2022 | 3.62 | 5.49 | 2.3 |
| 2021 | 9.22 | 12.22 | 4.28 |
| 2020 | 13.67 | 19.2 | 10.22 |
| 2019 | 13.25 | 19.94 | 8.34 |
| 2018 | 9.65 | 14.91 | 5.55 |
| 2017 | 24.45 | 38.43 | 13.33 |
| 2016 | 69.72 | 184.49 | 36.74 |
| 2015 | 154.48 | 261.47 | 49.84 |
| 2014 | 20.35 | 61.36 | 6.39 |
| 2013 | 169.2 | 837.88 | 6.49 |
| 2012 | 972.05 | 1268.5 | 451.44 |
| 2011 | 382.76 | 1227 | 40.47 |
| 2010 | 21.17 | 53.46 | 8.07 |
| 2009 | 3.78 | 10.01 | 0.86 |
| 2008 | 2 | 4.77 | 0.73 |
| 2007 | 3.6 | 5.3 | 1.77 |
| 2006 | 1.77 | 2.36 | 1.19 |
| 2005 | 2.03 | 3.35 | 1.12 |
| 2004 | 6.37 | 10.77 | 3.04 |