| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 14.19 | 19.13 | 12.47 |
| 2024 | 17.76 | 30.2 | 12.52 |
| 2023 | 22.27 | 29.91 | 10.86 |
| 2022 | 13.53 | 22.62 | 10.77 |
| 2021 | 9.89 | 12.66 | 7.88 |
| 2020 | 11.75 | 16.74 | 8.56 |
| 2019 | 0 | -3.3 | |
| 2018 | 102.47 | 111.18 | 88.84 |
| 2017 | 0 | -22.97 | |
| 2016 | 115.92 | 584.68 | 18.4 |
| 2015 | 16.55 | 38.86 | 5.9 |
| 2014 | 4.2 | 8.02 | 1.96 |
| 2013 | 2.27 | 2.89 | 1.73 |
| 2012 | 2.63 | 4.8 | 1.58 |
| 2011 | 13.22 | 23.69 | 2.29 |
| 2010 | 13.04 | 18.43 | 9.32 |
| 2009 | 7.46 | 12.31 | 3.08 |
| 2008 | 4.48 | 9.22 | 1.71 |
| 2007 | 6.65 | 11.81 | 2.31 |
| 2006 | 2.56 | 3.27 | 1.91 |
| 2005 | 2.35 | 3.12 | 1.69 |
| 2004 | 3.51 | 4.44 | 2.78 |
| 2003 | 3.63 | 5.58 | 2.67 |
| 2002 | 5.41 | 7.4 | 2.97 |
| 2001 | 6.8 | 8.61 | 4.19 |
| 2000 | 7.46 | 10.02 | 3.31 |