| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2024 | 5.42 | 7 | 4.37 |
| 2023 | 5.68 | 7.34 | 4.61 |
| 2022 | 4.9 | 7.31 | 3.26 |
| 2021 | 8.09 | 12.45 | 5.5 |
| 2020 | 7.34 | 10.75 | 4.25 |
| 2019 | 6.28 | 7.89 | 4.95 |
| 2018 | 13.21 | 22.38 | 5.68 |
| 2017 | 15.84 | 21.66 | 11.52 |
| 2016 | 97.77 | 319.95 | 18.16 |
| 2015 | 18.12 | 386.36 | 4.55 |
| 2014 | 4.65 | 6.43 | 2.8 |
| 2013 | 2.46 | 4.49 | 1.71 |
| 2012 | 2.01 | 2.4 | 1.71 |
| 2011 | 2.73 | 3.43 | 1.92 |
| 2010 | 2.88 | 3.53 | 2.26 |
| 2009 | 2.26 | 2.88 | 1.46 |
| 2008 | 2.1 | 3.58 | 0.9 |
| 2007 | 3.17 | 4.61 | 2.27 |
| 2006 | 2.74 | 3.9 | 2.21 |
| 2005 | 2.76 | 3.47 | 2.05 |