| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 3.25 | 3.65 | 2.99 |
| 2024 | 2.81 | 4.43 | 2.17 |
| 2023 | 3.12 | 3.46 | 2.77 |
| 2022 | 3.16 | 4.24 | 2.65 |
| 2021 | 2.98 | 4.54 | 2.31 |
| 2020 | 2.97 | 3.72 | 2.55 |
| 2019 | 4.04 | 5.23 | 3.26 |
| 2018 | 7.18 | 13.38 | 4 |
| 2017 | 13.28 | 17.39 | 10.51 |
| 2016 | 23.52 | 36.06 | 16.64 |
| 2015 | 43.92 | 70.25 | 21.68 |
| 2014 | 11.37 | 24.94 | 4.43 |
| 2013 | 61.86 | 287.18 | 4.74 |
| 2012 | 69.54 | 207.51 | 32.95 |
| 2011 | 72.21 | 93.79 | 34.76 |
| 2010 | 87.65 | 106.33 | 66.84 |
| 2009 | 54.72 | 85.41 | 29.34 |
| 2008 | 48.74 | 100.42 | 21.59 |
| 2007 | 57.96 | 94.45 | 15.51 |
| 2006 | 10.72 | 17.27 | 6.19 |
| 2005 | 14.82 | 32.33 | 6.12 |
| 2004 | 25.58 | 35.4 | 20.37 |