| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 11.26 | 14.2 | 8.99 |
| 2024 | 8.22 | 12.93 | 5.24 |
| 2023 | 26.02 | 39.28 | 7.5 |
| 2022 | 14.22 | 23.61 | 8.05 |
| 2021 | 8.05 | 11.15 | 6.21 |
| 2020 | 6.27 | 8.06 | 4.14 |
| 2019 | 4.17 | 7.09 | 2.47 |
| 2018 | 3.67 | 6.52 | 1.98 |
| 2017 | 6.73 | 8.91 | 5.08 |
| 2016 | 7.06 | 9.01 | 5.17 |
| 2015 | 5.8 | 8.43 | 3.81 |
| 2014 | 2.59 | 5.77 | 1.44 |
| 2013 | 1.56 | 2 | 1.31 |
| 2012 | 1.68 | 2.07 | 1.32 |
| 2011 | 2.55 | 3.52 | 1.64 |
| 2010 | 2.49 | 3.08 | 1.94 |
| 2009 | 2.2 | 3 | 1.13 |
| 2008 | 2.21 | 5.07 | 0.84 |
| 2007 | 2.49 | 4.44 | 0.98 |
| 2006 | 0.92 | 1.24 | 0.68 |
| 2005 | 0.74 | 0.94 | 0.61 |
| 2004 | 1.14 | 1.51 | 0.88 |
| 2003 | 1.39 | 1.75 | 1.17 |
| 2002 | 2.87 | 3.77 | 1.9 |
| 2001 | 3.89 | 4.58 | 2.98 |
| 2000 | 3.86 | 4.44 | 3.28 |