| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 3.64 | 4.26 | 3.23 |
| 2024 | 2.82 | 4.34 | 1.9 |
| 2023 | 3.58 | 4.3 | 2.97 |
| 2022 | 78.9 | 509.49 | 3.58 |
| 2021 | 107.28 | 449.64 | 31.27 |
| 2020 | 29.1 | 38.14 | 22.28 |
| 2019 | 33.18 | 47.09 | 22.08 |
| 2018 | 77.44 | 222.88 | 22.71 |
| 2017 | 356.7 | 593.02 | 212.35 |
| 2016 | 431.23 | 535.91 | 383.88 |
| 2015 | 124.54 | 679.72 | 6.78 |
| 2014 | 5.28 | 8.37 | 3.53 |
| 2013 | 3.25 | 4.86 | 1.64 |
| 2012 | 2 | 2.58 | 1.63 |
| 2011 | 2.66 | 3.4 | 1.74 |
| 2010 | 2.26 | 2.91 | 1.74 |
| 2009 | 1.65 | 2.18 | 0.99 |
| 2008 | 1.75 | 3.43 | 0.79 |
| 2007 | 2.35 | 3.34 | 1.54 |
| 2006 | 1.55 | 1.87 | 1.16 |
| 2005 | 1.44 | 1.74 | 1.21 |
| 2004 | 1.88 | 2.53 | 1.39 |
| 2003 | 2.49 | 3.22 | 1.87 |
| 2002 | 4.4 | 5.13 | 3.55 |