| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2023 | 32.51 | 35.21 | 30.1 |
| 2022 | 27.92 | 34.48 | 21.83 |
| 2021 | 47.07 | 76.71 | 29.99 |
| 2020 | 61.8 | 102.5 | 33.58 |
| 2019 | 36.3 | 43.99 | 28.92 |
| 2018 | 36.78 | 44.52 | 29.27 |
| 2017 | 37.62 | 47.08 | 30.93 |
| 2016 | 46.35 | 59.56 | 36.55 |
| 2015 | 47.39 | 75.6 | 35.03 |
| 2014 | 33.68 | 42.95 | 26.83 |
| 2013 | 45.33 | 56.51 | 35.22 |
| 2012 | 38.15 | 46.54 | 28.12 |
| 2011 | 31.91 | 40.97 | 24.51 |
| 2010 | 43.08 | 94.27 | 29.43 |
| 2009 | 67.73 | 113.75 | 46.17 |
| 2008 | 71.97 | 116.42 | 45.02 |
| 2007 | 82.75 | 116.21 | 42.88 |
| 2006 | 30.16 | 46.61 | 19.72 |
| 2005 | 24.33 | 31.25 | 18.56 |