| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2020 | 73.19 | 78.97 | 69.69 |
| 2019 | 25.2 | 68.53 | 13.27 |
| 2018 | 23.96 | 39.65 | 12.69 |
| 2017 | 33.19 | 48.26 | 23.16 |
| 2016 | 106.9 | 276.07 | 23.21 |
| 2015 | 130.2 | 270.41 | 54.3 |
| 2014 | 1018.67 | 1640.9 | 512.82 |
| 2013 | 222.44 | 579.57 | 96.78 |
| 2012 | 104.49 | 130.52 | 76.4 |
| 2011 | 130.62 | 157.36 | 91.61 |