| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2023 | 16.52 | 18.75 | 13.73 |
| 2022 | 26.62 | 46.73 | 13.65 |
| 2021 | 42.15 | 61.9 | 32.55 |
| 2020 | 69.8 | 102.24 | 41.17 |
| 2019 | 37.9 | 72.62 | 13.3 |
| 2018 | 17.99 | 28.71 | 11.69 |
| 2017 | 32.78 | 38.87 | 27.22 |
| 2016 | 33.3 | 40.6 | 23.5 |
| 2015 | 30.05 | 40.86 | 19.62 |
| 2014 | 31.05 | 49.56 | 24.1 |
| 2013 | 51.19 | 69.07 | 38.14 |
| 2012 | 43.66 | 55.2 | 35.67 |
| 2011 | 59.07 | 89.22 | 39.05 |
| 2010 | 79.61 | 103.23 | 59.51 |
| 2009 | 44.21 | 73.39 | 28.86 |