| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2024 | 0 | ||
| 2023 | 0 | ||
| 2022 | 5.06 | 11.11 | 0.62 |
| 2021 | 6.03 | 10.82 | 1.76 |
| 2020 | 3.08 | 6.19 | 1.09 |
| 2019 | 3.57 | 7.7 | 0.88 |
| 2018 | 4.04 | 7.45 | 1.16 |
| 2017 | 215.77 | 967.35 | 6.44 |
| 2016 | 521.94 | 984.67 | 266.27 |
| 2015 | 399.67 | 750.24 | 117.72 |
| 2014 | 62.79 | 133.13 | 31.06 |
| 2013 | 55.79 | 79.52 | 41.32 |
| 2012 | 43.63 | 71.46 | 20.71 |
| 2011 | 66.78 | 100.21 | 22.41 |
| 2010 | 68.14 | 133.24 | 42.32 |
| 2009 | 22.87 | 59.29 | 5.75 |
| 2008 | 14.7 | 30.48 | 4.29 |
| 2007 | 20.98 | 30.48 | 6.08 |
| 2006 | 7.69 | 10.59 | 5.76 |
| 2005 | 11.17 | 14.51 | 8.3 |
| 2004 | 21.15 | 42.43 | 9.35 |