| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 4.16 | 4.64 | 3.8 |
| 2024 | 4.14 | 5.18 | 3.26 |
| 2023 | 5.43 | 7.36 | 4.4 |
| 2022 | 8.46 | 16.09 | 5.86 |
| 2021 | 3.44 | 7.12 | 2.86 |
| 2020 | 3.75 | 4.86 | 2.74 |
| 2019 | 3.57 | 4.95 | 2.62 |
| 2018 | 4.92 | 6.61 | 3.79 |
| 2017 | 8.44 | 13.62 | 5.97 |
| 2016 | 12.44 | 17.48 | 9.19 |
| 2015 | 16.24 | 40.45 | 9.11 |
| 2014 | 5.63 | 7.9 | 3.4 |
| 2013 | 3.41 | 3.99 | 2.99 |
| 2012 | 4.76 | 6.94 | 2.66 |
| 2011 | 8.76 | 10.8 | 6.52 |