| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 35.08 | 39.38 | 31.38 |
| 2024 | 25.3 | 49.07 | 19.22 |
| 2023 | 17.82 | 21.14 | 14.8 |
| 2022 | 14.29 | 29.22 | 9.87 |
| 2021 | 8.02 | 18.55 | 3.67 |
| 2020 | 4.21 | 7.4 | 1.62 |
| 2019 | 1.2 | 2.09 | 0.58 |
| 2018 | 1 | 1.4 | 0.54 |
| 2017 | 2.86 | 5.36 | 1.4 |
| 2016 | 2.62 | 8.95 | 1.01 |
| 2015 | 1.13 | 2.62 | 0.7 |
| 2014 | 0.59 | 0.74 | 0.54 |
| 2013 | 0.63 | 0.76 | 0.52 |
| 2012 | 0.63 | 0.78 | 0.48 |
| 2011 | 0.91 | 1.24 | 0.58 |
| 2010 | 1.54 | 2.14 | 1.12 |
| 2009 | 1.32 | 1.7 | 0.78 |
| 2008 | 1.37 | 2.55 | 0.6 |
| 2007 | 2.08 | 3.2 | 1.09 |
| 2006 | 0.92 | 1.15 | 0.71 |
| 2005 | 0.68 | 0.87 | 0.49 |
| 2004 | 0.91 | 1.76 | 0.59 |