| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2023 | 9.66 | 14.16 | 8.45 |
| 2022 | 10.02 | 12.93 | 8.47 |
| 2021 | 23.96 | 44.72 | 8.72 |
| 2020 | 30.8 | 45.2 | 17.03 |
| 2019 | 24.18 | 27.27 | 19.96 |
| 2018 | 50.23 | 72.7 | 24.64 |
| 2017 | 108.83 | 236.5 | 49.72 |
| 2016 | 97.36 | 220.31 | 31.05 |
| 2015 | 26.01 | 40.62 | 15.04 |
| 2014 | 11.25 | 15.18 | 10.47 |
| 2013 | 13.03 | 14.77 | 11.31 |
| 2012 | 12.89 | 14.2 | 11.95 |
| 2011 | 14.19 | 18.16 | 12.07 |
| 2010 | 18.55 | 24.12 | 15.41 |
| 2009 | 22.7 | 28.27 | 18.05 |
| 2008 | 22.46 | 29.78 | 17.01 |