| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2019 | 35.27 | 43.87 | 27.82 |
| 2018 | 46.86 | 73.85 | 23.53 |
| 2017 | 99.85 | 158.37 | 65.37 |
| 2016 | 314.72 | 483.93 | 146.61 |
| 2015 | 368.77 | 750.81 | 167.46 |
| 2014 | 144.08 | 190.9 | 115.49 |
| 2013 | 158.31 | 265.88 | 95.59 |
| 2012 | 151.75 | 222.09 | 79.97 |
| 2011 | 174.05 | 346.53 | 100.91 |
| 2010 | 195.32 | 312.99 | 92.47 |
| 2009 | 1,070.57 | 1373.24 | 328.69 |
| 2008 | 451.25 | 523.7 | 337.8 |
| 2007 | 280.48 | 675.25 | 90.35 |
| 2006 | 106.70 | 143.91 | 82.57 |
| 2005 | 82.78 | 124.61 | 72.3 |
| 2004 | 76.68 | 92.54 | 68.82 |
| 2003 | 80.05 | 92.57 | 59.65 |
| 2002 | 57.89 | 64.73 | 50.09 |
| 2001 | 70.82 | 100.07 | 56.29 |
| 2000 | 66.80 | 95.48 | 50.22 |