| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 2.07 | 5.86 | 1.41 |
| 2024 | 0.99 | 1.99 | 0.44 |
| 2023 | 0.93 | 1.2 | 0.53 |
| 2022 | 1.1 | 1.38 | 0.7 |
| 2021 | 0.7 | 0.89 | 0.58 |
| 2020 | 1.06 | 1.59 | 0.64 |
| 2019 | 1.2 | 1.85 | 0.65 |
| 2018 | 1.48 | 3.05 | 0.69 |
| 2017 | 2.62 | 3.22 | 2.29 |
| 2016 | 2.69 | 3.75 | 1.63 |
| 2015 | 5.73 | 9.93 | 2.48 |
| 2014 | 4 | 6.45 | 2.4 |
| 2013 | 3.97 | 5.49 | 2.75 |
| 2012 | 3.07 | 5.29 | 1.93 |
| 2011 | 4.37 | 7.45 | 3.01 |
| 2010 | 0 | ||
| 2009 | 0 | ||
| 2008 | 4.52 | 6.91 | 2.65 |
| 2007 | 2.7 | 5.25 | 0.69 |
| 2006 | 0.45 | 0.76 | 0.23 |
| 2005 | 0.17 | 0.26 | 0.12 |
| 2004 | 0.24 | 0.35 | 0.15 |