| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 0 | -3 | |
| 2024 | 140.82 | 175.97 | 79 |
| 2023 | 53.91 | 201.1 | 7.56 |
| 2022 | 4.6 | 8.8 | 2.49 |
| 2021 | 2.24 | 3.75 | 1.45 |
| 2020 | 1.34 | 1.98 | 0.75 |
| 2019 | 0.99 | 1.59 | 0.71 |
| 2018 | 0.92 | 1.17 | 0.66 |
| 2017 | 1.54 | 1.89 | 1.08 |
| 2016 | 1.38 | 1.69 | 1.1 |
| 2015 | 1.69 | 3.07 | 0.89 |
| 2014 | 1.58 | 2.06 | 1.32 |
| 2013 | 1.52 | 2.25 | 1.18 |
| 2012 | 1.52 | 2.1 | 1.06 |
| 2011 | 5.08 | 9.58 | 1.55 |
| 2010 | 5.58 | 7.68 | 4.5 |
| 2009 | 2.94 | 5.85 | 1.6 |
| 2008 | 2.39 | 4.47 | 1.14 |
| 2007 | 3.59 | 5.75 | 1.84 |
| 2006 | 1.55 | 2 | 0.99 |
| 2005 | 1.08 | 1.33 | 0.82 |
| 2004 | 2 | 3.55 | 1.32 |