| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 4.27 | 4.71 | 3.79 |
| 2024 | 3.84 | 5.03 | 2.59 |
| 2023 | 11.01 | 15.03 | 4.92 |
| 2022 | 27.26 | 71.55 | 9.34 |
| 2021 | 66.38 | 156.12 | 14.32 |
| 2020 | 13.17 | 18.07 | 10.12 |
| 2019 | 31.07 | 50.61 | 15.1 |
| 2018 | 44.42 | 58.17 | 30.32 |
| 2017 | 53.57 | 68.44 | 40.63 |
| 2016 | 42.58 | 56.26 | 32.24 |
| 2015 | 21.48 | 43.24 | 4.85 |
| 2014 | 7.02 | 13.39 | 3.98 |
| 2013 | 9.47 | 15.77 | 4.99 |
| 2012 | 4.22 | 6.19 | 2.03 |
| 2011 | 4.66 | 8.16 | 2.2 |
| 2010 | 6.61 | 8.63 | 5.39 |
| 2009 | 5.23 | 6.58 | 3.9 |
| 2008 | 5.62 | 8.62 | 2.88 |
| 2007 | 4.19 | 7.42 | 1.5 |
| 2006 | 1.6 | 2.38 | 1.28 |
| 2005 | 1.24 | 1.64 | 1.04 |
| 2004 | 1.95 | 3.83 | 1.21 |