| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 1.45 | 1.64 | 1.17 |
| 2024 | 1.26 | 1.99 | 0.92 |
| 2023 | 1.98 | 2.82 | 1.46 |
| 2022 | 2.49 | 3.87 | 1.98 |
| 2021 | 0 | ||
| 2020 | 503.23 | 571.86 | 414.28 |
| 2019 | 110.04 | 620.15 | 17.33 |
| 2018 | 18.89 | 28.97 | 10.85 |
| 2017 | 13.68 | 20.69 | 9.39 |
| 2016 | 19.56 | 39.76 | 10.98 |
| 2015 | 55.53 | 104.91 | 26.04 |
| 2014 | 65.65 | 143.47 | 32.25 |
| 2013 | 29.88 | 42.55 | 21.7 |
| 2012 | 0 | ||
| 2011 | 0 | ||
| 2010 | 0 | ||
| 2009 | 0 | ||
| 2008 | 0 | ||
| 2007 | 1.31 | 1.87 | 0.72 |
| 2006 | 0.89 | 1.23 | 0.48 |
| 2005 | 0.96 | 1.44 | 0.49 |
| 2004 | 1.45 | 2.87 | 0.75 |