| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2024 | 1.89 | 3.11 | 1.48 |
| 2023 | 3.5 | 5.05 | 2.56 |
| 2022 | 5.4 | 8.42 | 3.59 |
| 2021 | 6.97 | 10.41 | 4.73 |
| 2020 | 2.73 | 6.18 | 1.41 |
| 2019 | 1.46 | 2.24 | 1.25 |
| 2018 | 3.38 | 3.51 | 3.32 |
| 2017 | 7.71 | 50.74 | 3.32 |
| 2016 | 6.1 | 34.35 | 3.96 |
| 2015 | 10.66 | 65.89 | 4.74 |
| 2014 | 4.04 | 8.56 | 1.56 |
| 2013 | 1.73 | 2.21 | 1.3 |
| 2012 | 1.52 | 1.97 | 1.15 |
| 2011 | 2.15 | 2.92 | 1.21 |
| 2010 | 2.16 | 2.71 | 1.55 |
| 2009 | 2.21 | 3.23 | 1.25 |
| 2008 | 2.16 | 4.46 | 0.87 |
| 2007 | 3.17 | 5.28 | 1.16 |
| 2006 | 1.15 | 1.4 | 0.83 |
| 2005 | 1.86 | 3.15 | 1.07 |
| 2004 | 1.95 | 3.08 | 1.35 |
| 2003 | 1.87 | 2.25 | 1.59 |
| 2002 | 2.28 | 2.7 | 1.83 |
| 2001 | 2.97 | 3.56 | 2.2 |