| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 11.53 | 16.12 | 9.82 |
| 2024 | 7.84 | 15.18 | 3.95 |
| 2023 | 5.67 | 8.69 | 4.49 |
| 2022 | 5.29 | 6 | 4.1 |
| 2021 | 5.04 | 8.64 | 3.39 |
| 2020 | 4.46 | 5.41 | 3.89 |
| 2019 | 5.05 | 6.98 | 3.42 |
| 2018 | 4.16 | 5.98 | 3.17 |
| 2017 | 6.91 | 10.05 | 5.46 |
| 2016 | 6.26 | 8.56 | 3.61 |
| 2015 | 5.68 | 9.93 | 3.57 |
| 2014 | 3.8 | 5.54 | 2.63 |
| 2013 | 3.15 | 4.15 | 2.27 |
| 2012 | 3.59 | 4.46 | 2.45 |
| 2011 | 6.15 | 8.04 | 3.27 |
| 2010 | 4.4 | 6.02 | 2.98 |
| 2009 | 2.75 | 4.92 | 1.23 |
| 2008 | 2.5 | 4.87 | 0.99 |
| 2007 | 2.97 | 4.53 | 1.28 |
| 2006 | 1.3 | 1.54 | 0.97 |
| 2005 | 1.25 | 1.54 | 0.91 |
| 2004 | 1.85 | 2.47 | 1.47 |
| 2003 | 1.99 | 2.52 | 1.55 |
| 2002 | 3.05 | 3.44 | 2.48 |
| 2001 | 4.39 | 5.26 | 2.95 |