| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2021 | 168.87 | 221.6 | 110.45 |
| 2020 | 155.92 | 289.84 | 45.27 |
| 2019 | 43.96 | 61.23 | 31.13 |
| 2018 | 41.36 | 56.86 | 28.55 |
| 2017 | 32.38 | 47.51 | 25.82 |
| 2016 | 46.15 | 74.58 | 29.59 |
| 2015 | 235.36 | 381.55 | 74.43 |
| 2014 | 232.61 | 287.18 | 165.76 |
| 2013 | 295.34 | 710.19 | 44.74 |
| 2012 | 39.27 | 55.06 | 29.2 |