| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2025 | 15.35 | 18.08 | 12.39 |
| 2024 | 13.82 | 28.38 | 7.88 |
| 2023 | 36.52 | 74.94 | 18.56 |
| 2022 | 31.96 | 52.63 | 15.46 |
| 2021 | 9.5 | 20.36 | 3.01 |
| 2020 | 5.08 | 6.12 | 4.21 |
| 2019 | 4.27 | 6.37 | 2.73 |
| 2018 | 3.05 | 3.71 | 2.16 |
| 2017 | 4.23 | 5.9 | 3.39 |
| 2016 | 5.24 | 10.45 | 3.89 |
| 2015 | 8.43 | 10.45 | 4.44 |
| 2014 | 6.22 | 10.92 | 3.67 |
| 2013 | 8.91 | 13 | 6.17 |
| 2012 | 35.22 | 180.26 | 1.83 |
| 2011 | 3.6 | 5.24 | 2.02 |
| 2010 | 4.43 | 6.87 | 3.27 |
| 2009 | 3.12 | 4.38 | 2.07 |
| 2008 | 3.91 | 7.2 | 1.29 |
| 2007 | 4.67 | 6.93 | 3.14 |
| 2006 | 2.04 | 4.75 | 1 |
| 2005 | 1.42 | 1.86 | 1.04 |
| 2004 | 2.42 | 3.83 | 1.72 |
| 2003 | 2.99 | 4.3 | 2.26 |
| 2002 | 4.58 | 5.15 | 3.26 |
| 2001 | 6.03 | 7.39 | 4.32 |