| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 3.24 | 4.36 | 2.74 |
| 2024 | 3.1 | 4.32 | 2.38 |
| 2023 | 8.63 | 36.42 | 2.85 |
| 2022 | 10.33 | 16.16 | 7.49 |
| 2021 | 6.45 | 12.22 | 4.21 |
| 2020 | 4.7 | 5.45 | 4.15 |
| 2019 | 5.21 | 6.03 | 4.45 |
| 2018 | 5.49 | 7.1 | 3.9 |
| 2017 | 9.37 | 14.38 | 6.19 |
| 2016 | 13.08 | 15.27 | 11.01 |
| 2015 | 0 | -9.84 | |
| 2014 | 94.47 | 126.51 | 56.42 |
| 2013 | 34.66 | 47.76 | 25.33 |
| 2012 | 8.84 | 29.38 | 2.45 |
| 2011 | 4.59 | 7.93 | 2.49 |
| 2010 | 4.86 | 8.22 | 3.32 |
| 2009 | 2.57 | 4.39 | 1.25 |
| 2008 | 1.97 | 3.78 | 0.77 |
| 2007 | 2.88 | 6.21 | 1.26 |
| 2006 | 1.26 | 1.49 | 1.1 |
| 2005 | 1.74 | 2.6 | 1.03 |
| 2004 | 2.38 | 2.8 | 1.99 |
| 2003 | 2.48 | 2.95 | 2.02 |
| 2002 | 3.01 | 3.46 | 2.25 |
| 2001 | 4.65 | 5.44 | 4.01 |