| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 216.3 | 1012.62 | 15.78 |
| 2024 | 218.12 | 678.25 | 17.52 |
| 2023 | 309.95 | 718.29 | 111.71 |
| 2022 | 956.06 | 3075.97 | 30.97 |
| 2021 | 2497.51 | 9429.33 | 97.63 |
| 2020 | 3.24 | 4.07 | 2.32 |
| 2019 | 3.16 | 4.19 | 1.96 |
| 2018 | 2.44 | 3.31 | 1.63 |
| 2017 | 4.05 | 5.88 | 2.81 |
| 2016 | 4.49 | 7.16 | 2.73 |
| 2015 | 4.13 | 5.56 | 2.68 |
| 2014 | 1.8 | 2.82 | 1.37 |
| 2013 | 1.53 | 1.99 | 1.31 |
| 2012 | 1.5 | 1.87 | 1.24 |
| 2011 | 2.27 | 2.88 | 1.48 |
| 2010 | 2.26 | 2.71 | 1.77 |
| 2009 | 1.84 | 2.48 | 1.04 |
| 2008 | 1.73 | 3 | 0.78 |
| 2007 | 2.39 | 3.86 | 1.16 |
| 2006 | 1.09 | 1.28 | 0.86 |
| 2005 | 1.01 | 1.51 | 0.71 |
| 2004 | 1.74 | 2.61 | 1.32 |
| 2003 | 2.23 | 2.66 | 1.75 |
| 2002 | 3.8 | 6.26 | 2.75 |
| 2001 | 8.49 | 11 | 5.36 |
| 2000 | 6.6 | 9.4 | 3.98 |