| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2023 | 20.7 | 32.78 | 16.49 |
| 2022 | 15.17 | 20.84 | 9.01 |
| 2021 | 15.8 | 28.03 | 11.22 |
| 2020 | 16.01 | 20.45 | 11.7 |
| 2019 | 14.25 | 21.24 | 11.23 |
| 2018 | 24.24 | 41.36 | 11.74 |
| 2017 | 100.59 | 213.82 | 32.55 |
| 2016 | 192.06 | 215.39 | 162.91 |
| 2015 | 46.57 | 125.22 | 39.37 |
| 2014 | 22.52 | 51.26 | 14.31 |
| 2013 | 14.79 | 20.62 | 10.71 |
| 2012 | 10.95 | 13.17 | 8.44 |
| 2011 | 17.86 | 28.89 | 9.7 |
| 2010 | 23.08 | 34.3 | 14.93 |
| 2009 | 33.16 | 46.18 | 16.6 |
| 2008 | 22.52 | 39.66 | 11.61 |
| 2007 | 42.66 | 62.11 | 27.9 |
| 2006 | 21.3 | 36.46 | 10.69 |
| 2005 | 11.83 | 18.64 | 9.67 |
| 2004 | 14.98 | 24.01 | 11.08 |