| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2024 | 0 | ||
| 2023 | 0 | ||
| 2022 | 0 | ||
| 2021 | 15.27 | 15.72 | 14.83 |
| 2020 | 14.47 | 18.84 | 10.81 |
| 2019 | 17.6 | 29.41 | 12.48 |
| 2018 | 30.09 | 40.52 | 21.16 |
| 2017 | 45.87 | 64.18 | 38.3 |
| 2016 | 51.87 | 61.65 | 40.37 |
| 2015 | 67.35 | 94.14 | 53.36 |
| 2014 | 33.09 | 68.91 | 12.18 |
| 2013 | 14.26 | 20.12 | 11.03 |
| 2012 | 19.27 | 33.19 | 16.03 |
| 2011 | 26.21 | 35.47 | 18.41 |
| 2010 | 37.93 | 54.27 | 26.79 |
| 2009 | 24.64 | 42.55 | 13.49 |
| 2008 | 22.79 | 34.18 | 12.98 |
| 2007 | 29.17 | 38.4 | 15.58 |
| 2006 | 14.56 | 20.97 | 12.59 |
| 2005 | 23.29 | 29.42 | 17.54 |
| 2004 | 31.63 | 41.91 | 24.23 |
| 2003 | 36.51 | 42.54 | 30.52 |