| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 18.76 | 21.78 | 16.99 |
| 2024 | 6.77 | 21.43 | 3.17 |
| 2023 | 6.24 | 10.91 | 5.29 |
| 2022 | 6.39 | 9.03 | 4.47 |
| 2021 | 6.15 | 9.91 | 3.54 |
| 2020 | 3.32 | 5.16 | 2.03 |
| 2019 | 3.63 | 5.25 | 2.63 |
| 2018 | 7.63 | 15.82 | 3.75 |
| 2017 | 16.54 | 20.6 | 14.06 |
| 2016 | 52.97 | 217.84 | 18.56 |
| 2015 | 698.93 | 2090.35 | 140.53 |
| 2014 | 133.11 | 377.94 | 14.96 |
| 2013 | 14.87 | 17.65 | 11.95 |
| 2012 | 38.31 | 65.98 | 13.25 |
| 2011 | 130.63 | 152.18 | 116.7 |
| 2010 | 72.03 | 141.19 | 23.19 |
| 2009 | 11.62 | 25.48 | 3.51 |
| 2008 | 4.79 | 9.64 | 1.95 |
| 2007 | 11.28 | 21.73 | 5.27 |
| 2006 | 23.15 | 58.49 | 5.17 |
| 2005 | 85.7 | 242.27 | 14.16 |
| 2004 | 34.96 | 78.07 | 16.23 |