| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 6.22 | 9.11 | 5.19 |
| 2024 | 4.08 | 5.48 | 2.7 |
| 2023 | 23.73 | 69.03 | 4.51 |
| 2022 | 65.61 | 86.49 | 48.87 |
| 2021 | 31.4 | 60.87 | 10.37 |
| 2020 | 23.66 | 34.96 | 15.37 |
| 2019 | 127.28 | 382.73 | 17.31 |
| 2018 | 109.29 | 336.37 | 17.94 |
| 2017 | 79.3 | 188.6 | 21.15 |
| 2016 | 206.85 | 369.05 | 45.56 |
| 2015 | 32.79 | 78.24 | 16.66 |
| 2014 | 12.52 | 20.12 | 9.91 |
| 2013 | 18.36 | 27.51 | 11.72 |
| 2012 | 20.1 | 26.5 | 14.18 |
| 2011 | 21.39 | 28.51 | 15.82 |
| 2010 | 37.59 | 52.7 | 23.46 |
| 2009 | 25.35 | 49.86 | 7.07 |
| 2008 | 9.64 | 17.04 | 4.4 |
| 2007 | 11.56 | 19.56 | 5.3 |
| 2006 | 2.68 | 5.15 | 1.08 |
| 2005 | 1.18 | 1.62 | 0.8 |
| 2004 | 1.46 | 2.43 | 0.92 |