| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 11.65 | 14.69 | 8.61 |
| 2024 | 7.95 | 11.22 | 5.4 |
| 2023 | 21.77 | 40.32 | 9.99 |
| 2022 | 20.66 | 35.93 | 11.25 |
| 2021 | 14.71 | 27.46 | 7.66 |
| 2020 | 7.07 | 10.26 | 3.28 |
| 2019 | 4.04 | 5.28 | 3.45 |
| 2018 | 4.7 | 6.67 | 3.08 |
| 2017 | 10.13 | 20.49 | 6.37 |
| 2016 | 36.44 | 99.9 | 15.47 |
| 2015 | 735.61 | 1809.47 | 58.58 |
| 2014 | 137.47 | 715.06 | 13.32 |
| 2013 | 57.37 | 87.03 | 9.1 |
| 2012 | 11.74 | 23.84 | 6.79 |
| 2011 | 17.63 | 29.31 | 8.51 |
| 2010 | 10.08 | 15.16 | 7.12 |
| 2009 | 6.59 | 13.79 | 1.63 |
| 2008 | 2.97 | 5.02 | 1.12 |
| 2007 | 2.81 | 4.95 | 1.52 |
| 2006 | 0.92 | 1.77 | 0.46 |
| 2005 | 0.55 | 0.73 | 0.29 |
| 2004 | 0.86 | 1.68 | 0.47 |