| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 2.33 | 3.64 | 1.91 |
| 2024 | 3.27 | 4.51 | 2.06 |
| 2023 | 3.04 | 3.98 | 2.15 |
| 2022 | 3.18 | 3.75 | 2.34 |
| 2021 | 5.75 | 11.81 | 2.94 |
| 2020 | 120.99 | 489.09 | 8.13 |
| 2019 | 52.38 | 97.15 | 28.94 |
| 2018 | 37.75 | 96.81 | 21.04 |
| 2017 | 42.9 | 60.27 | 30.76 |
| 2016 | 42.89 | 80.85 | 24.01 |
| 2015 | 98.39 | 148.8 | 47.98 |
| 2014 | 65.85 | 91.87 | 50.66 |
| 2013 | 51.02 | 84.42 | 29.97 |
| 2012 | 191.08 | 343.09 | 71.81 |
| 2011 | 1046.47 | 1992.8 | 242.69 |
| 2010 | 130808.19 | 143101 | 116593 |
| 2009 | 21600.24 | 129308 | 5.06 |
| 2008 | 9.69 | 17.81 | 3.67 |
| 2007 | 11.26 | 17.81 | 2.73 |
| 2006 | 3.26 | 4.3 | 2.01 |
| 2005 | 3.55 | 5.52 | 1.74 |
| 2004 | 7.52 | 13.57 | 4.71 |