| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 26.16 | 36.16 | 18.51 |
| 2024 | 26.56 | 43.51 | 15.31 |
| 2023 | 35.17 | 40.76 | 29.39 |
| 2022 | 35.23 | 54.16 | 27.27 |
| 2021 | 34.66 | 36.62 | 33.21 |
| 2020 | 19.1 | 26.05 | 12.96 |
| 2019 | 9.66 | 25.24 | 2.78 |
| 2018 | 7.28 | 17.8 | 3.74 |
| 2017 | 28.74 | 50.61 | 17.8 |
| 2016 | 24.35 | 76.12 | 11.5 |
| 2015 | 18.46 | 28.54 | 8.71 |
| 2014 | 9.86 | 13.83 | 8.53 |
| 2013 | 13.9 | 18.73 | 11.49 |
| 2012 | 0 | ||
| 2011 | 0 | -2.5 | |
| 2010 | 26.96 | 329.2 | 8.28 |
| 2009 | 7.21 | 10.86 | 2.24 |
| 2008 | 3.91 | 7.49 | 1.82 |
| 2007 | 5.82 | 11.05 | 1.47 |
| 2006 | 1.39 | 1.69 | 1.01 |
| 2005 | 1.03 | 1.43 | 0.77 |
| 2004 | 2.16 | 3.55 | 1.29 |
| 2003 | 2.26 | 2.78 | 1.74 |
| 2002 | 3.81 | 4.52 | 3.26 |
| 2001 | 4.59 | 5.85 | 3.13 |
| 2000 | 4.45 | 5.67 | 3.39 |
| 1999 | 3.55 | 4.57 | 2.76 |