| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2023 | 16.36 | 24.38 | 11.68 |
| 2022 | 15.63 | 28.76 | 8.91 |
| 2021 | 22.99 | 27.87 | 16.76 |
| 2020 | 37.92 | 61.59 | 18.69 |
| 2019 | 25.63 | 43.56 | 11.78 |
| 2018 | 19 | 30.63 | 12.32 |
| 2017 | 37.22 | 50.14 | 26.94 |
| 2016 | 64.16 | 110.49 | 37.67 |
| 2015 | 1046.04 | 4143.02 | 86.34 |
| 2014 | 1592.03 | 3207.68 | 855.76 |
| 2013 | 270.76 | 956.21 | 94.55 |
| 2012 | 66.67 | 103.83 | 34.28 |