| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 22.68 | 28.88 | 15.14 |
| 2024 | 20.51 | 28.73 | 12.96 |
| 2023 | 21.12 | 25.23 | 17.97 |
| 2022 | 25.26 | 39.79 | 18.08 |
| 2021 | 29.29 | 38.32 | 22.91 |
| 2020 | 25.8 | 40.12 | 16.34 |
| 2019 | 31.93 | 51.17 | 18.86 |
| 2018 | 73.22 | 114.33 | 36.61 |
| 2017 | 157.87 | 345.73 | 73.55 |
| 2016 | 356.55 | 612.33 | 287.79 |
| 2015 | 359.25 | 712.91 | 96.89 |
| 2014 | 76.86 | 96.89 | 44.96 |
| 2013 | 34.64 | 54.77 | 21.62 |
| 2012 | 21.8 | 26.01 | 14.5 |
| 2011 | 22.2 | 31.36 | 13.11 |
| 2010 | 19.39 | 38.89 | 11.53 |
| 2009 | 14.75 | 32.12 | 3.18 |
| 2008 | 6.8 | 14.83 | 2.26 |
| 2007 | 14.15 | 26.09 | 8.8 |
| 2006 | 7.1 | 10.03 | 4.49 |
| 2005 | 5.17 | 7.71 | 3.6 |
| 2004 | 6.78 | 11.25 | 4.44 |