| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 14.24 | 22.44 | 8.54 |
| 2024 | 8.61 | 14.69 | 5.23 |
| 2023 | 45.42 | 54.02 | 40.42 |
| 2022 | 22.93 | 48.62 | 1.2 |
| 2021 | 1.12 | 1.68 | 0.61 |
| 2020 | 1.17 | 1.61 | 0.86 |
| 2019 | 1.08 | 1.48 | 0.88 |
| 2018 | 1.12 | 1.56 | 0.86 |
| 2017 | 1.77 | 2.16 | 1.39 |
| 2016 | 2.55 | 4.48 | 1.92 |
| 2015 | 2.82 | 5.09 | 1.62 |
| 2014 | 1.62 | 2.04 | 1.38 |
| 2013 | 1.68 | 1.89 | 1.48 |
| 2012 | 1.81 | 2.26 | 1.48 |
| 2011 | 2.92 | 3.77 | 1.78 |
| 2010 | 2.71 | 3.79 | 2.15 |
| 2009 | 2.7 | 3.99 | 1.65 |
| 2008 | 2.77 | 5.31 | 1.23 |
| 2007 | 4.37 | 5.92 | 2.85 |
| 2006 | 1.84 | 2.95 | 1.2 |
| 2005 | 1.59 | 2.01 | 1.17 |
| 2004 | 2.4 | 3.33 | 1.77 |
| 2003 | 3.25 | 3.99 | 2.46 |
| 2002 | 5.13 | 6.01 | 4.74 |