| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 13.43 | 15.78 | 11.46 |
| 2024 | 12.58 | 18.24 | 9.49 |
| 2023 | 12.55 | 18.62 | 7.81 |
| 2022 | 11.91 | 20.64 | 7.18 |
| 2021 | 18.38 | 21.92 | 14.26 |
| 2020 | 25.89 | 33.77 | 20.07 |
| 2019 | 24.14 | 35.74 | 17.92 |
| 2018 | 20.36 | 25.21 | 16.78 |
| 2017 | 29.66 | 41.69 | 24.2 |
| 2016 | 41.04 | 54.36 | 36.06 |
| 2015 | 44.81 | 95.45 | 17.67 |
| 2014 | 1059.84 | 4870.27 | 17.28 |
| 2013 | 1032.84 | 5667.23 | 35.13 |
| 2012 | 21.52 | 43.09 | 3.15 |
| 2011 | 7.6 | 13.86 | 3.54 |
| 2010 | 13.04 | 18.04 | 8.08 |
| 2009 | 11.59 | 16.6 | 5.71 |
| 2008 | 31.92 | 79.91 | 4.26 |
| 2007 | 31.88 | 79.91 | 10.04 |
| 2006 | 7.9 | 11.29 | 4.92 |
| 2005 | 4.44 | 8.52 | 1.76 |
| 2004 | 2.37 | 2.89 | 1.7 |