| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2024 | 11.76 | 14.56 | 8.59 |
| 2023 | 13.23 | 16.17 | 9.92 |
| 2022 | 11.59 | 15.02 | 9.01 |
| 2021 | 19.58 | 31.66 | 12.14 |
| 2020 | 24.92 | 36.32 | 12.55 |
| 2019 | 14.52 | 19.07 | 11.2 |
| 2018 | 10.12 | 13.71 | 7.41 |
| 2017 | 15.79 | 20.92 | 12.57 |
| 2016 | 22.16 | 34.9 | 16.29 |
| 2015 | 45.92 | 62.72 | 28.67 |
| 2014 | 32.58 | 44.07 | 23.49 |
| 2013 | 21.27 | 41.49 | 13.04 |
| 2012 | 16.91 | 21.85 | 11.95 |
| 2011 | 20.56 | 26.48 | 16.2 |