| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 153.38 | 191.41 | 135.23 |
| 2024 | 57.92 | 206.43 | 9.63 |
| 2023 | 31.46 | 78.35 | 3.85 |
| 2022 | 7.44 | 23.82 | 1.01 |
| 2021 | 0.8 | 1.35 | 0.43 |
| 2020 | 0.62 | 0.72 | 0.55 |
| 2019 | 0.82 | 1.08 | 0.68 |
| 2018 | 1.25 | 1.76 | 0.79 |
| 2017 | 1.57 | 1.87 | 1.28 |
| 2016 | 1.3 | 1.76 | 0.96 |
| 2015 | 1.38 | 2.26 | 0.97 |
| 2014 | 0.89 | 1.17 | 0.74 |
| 2013 | 0.83 | 1 | 0.71 |
| 2012 | 0.91 | 1.11 | 0.79 |
| 2011 | 1.28 | 1.86 | 0.84 |
| 2010 | 1.51 | 2.11 | 1.17 |
| 2009 | 1.71 | 2.26 | 0.99 |
| 2008 | 2.4 | 7.45 | 0.84 |
| 2007 | 4.54 | 6.84 | 1.44 |
| 2006 | 1.14 | 1.59 | 0.91 |
| 2005 | 0.84 | 1.13 | 0.65 |
| 2004 | 1.36 | 1.99 | 0.97 |
| 2003 | 1.69 | 2.26 | 1.31 |
| 2002 | 2.9 | 3.29 | 2.59 |