| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 3.56 | 4.04 | 3.17 |
| 2024 | 4.07 | 6.21 | 2.83 |
| 2023 | 6.15 | 8.77 | 4.61 |
| 2022 | 12.2 | 80.21 | 5.87 |
| 2021 | 50.03 | 67.47 | 38.63 |
| 2020 | 26.81 | 42.04 | 11.57 |
| 2019 | 10.34 | 33.27 | 1.02 |
| 2018 | 1.57 | 3.31 | 0.72 |
| 2017 | 33.6 | 86.8 | 3.31 |
| 2016 | 33.95 | 54.5 | 22.69 |
| 2015 | 28.66 | 52.97 | 14.41 |
| 2014 | 16.29 | 48.95 | 10.44 |
| 2013 | 11.62 | 18.02 | 7.07 |
| 2012 | 7.08 | 8.45 | 5.38 |
| 2011 | 6.63 | 9.28 | 4.13 |
| 2010 | 4.92 | 7.81 | 3.3 |
| 2009 | 4.17 | 6.38 | 1.59 |
| 2008 | 3.03 | 6.08 | 1.1 |
| 2007 | 4.04 | 6.13 | 1.28 |
| 2006 | 1.45 | 1.75 | 1.1 |
| 2005 | 1.72 | 2.09 | 1.29 |
| 2004 | 3.46 | 5.15 | 1.92 |