近3年:88%
近5年:77.7%
近10年:88.9%
所有时间:66.9%
| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 11.64 | 13.44 | 9.62 |
| 2024 | 9.56 | 12.29 | 7.63 |
| 2023 | 9.73 | 12.06 | 8.28 |
| 2022 | 10.3 | 13.7 | 7.32 |
| 2021 | 12.75 | 17.97 | 10.63 |
| 2020 | 8.5 | 10.71 | 7.02 |
| 2019 | 8.89 | 10.07 | 8.11 |
| 2018 | 9.38 | 11.39 | 8.33 |
| 2017 | 9.06 | 10.07 | 7.43 |
| 2016 | 7.01 | 7.93 | 5.49 |
| 2015 | 8.5 | 10.63 | 6.64 |
| 2014 | 7.96 | 8.93 | 7.19 |
| 2013 | 8.86 | 10.24 | 7.32 |
| 2012 | 9.07 | 11.39 | 7.65 |
| 2011 | 12.35 | 17.55 | 7.79 |
| 2010 | 16.85 | 20.58 | 14 |
| 2009 | 15.9 | 21.37 | 8.73 |
| 2008 | 16.92 | 29.91 | 6.64 |
| 2007 | 24.11 | 36.32 | 17.64 |
| 2006 | 14.69 | 21.35 | 11.88 |
| 2005 | 12.2 | 17.18 | 9.9 |
| 2004 | 16.12 | 22.28 | 12.2 |
| 2003 | 12.11 | 20.75 | 8.8 |
| 2002 | 8.58 | 10.47 | 6.5 |
| 2001 | 6.44 | 6.63 | 6.2 |