| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2020 | 9.64 | 11.41 | 8.14 |
| 2019 | 7.4 | 11.23 | 4.86 |
| 2018 | 10.81 | 31.37 | 4.83 |
| 2017 | 156.85 | 470.13 | 20.43 |
| 2016 | 437.14 | 1217.3 | 164.41 |
| 2015 | 157.41 | 439.09 | 51.98 |
| 2014 | 54.57 | 75.48 | 32.8 |
| 2013 | 31.73 | 39.89 | 23.82 |
| 2012 | 23.33 | 28.17 | 15.81 |
| 2011 | 40.82 | 126.27 | 17 |
| 2010 | 345.13 | 1128.49 | 41.32 |
| 2009 | 26.23 | 58.91 | 12.05 |
| 2008 | 44.22 | 76.07 | 7.45 |
| 2007 | 89.87 | 290.76 | 33 |
| 2006 | 0 | -3.27 | |
| 2005 | 34.4 | 40.2 | 26.4 |
| 2004 | 46.92 | 61.25 | 34.07 |
| 2003 | 52.47 | 61.58 | 45.23 |