| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2020 | 382.5 | 429.16 | 305.09 |
| 2019 | 186.38 | 414.24 | 117.53 |
| 2018 | 231.04 | 443.94 | 100.91 |
| 2017 | 281.76 | 418.63 | 181.86 |
| 2016 | 277.3 | 431.03 | 125.55 |
| 2015 | 169.37 | 274.1 | 106.27 |
| 2014 | 119.47 | 189.66 | 92.9 |
| 2013 | 111.23 | 151.95 | 78.43 |
| 2012 | 87.43 | 122.06 | 66.56 |
| 2011 | 119.7 | 148.24 | 93.92 |
| 2010 | 0 | -13.24 | |
| 2009 | 366.82 | 387.42 | 354.07 |
| 2008 | 314.82 | 339.94 | 278.48 |
| 2007 | 169.31 | 306.77 | 39.76 |
| 2006 | 69.26 | 134.07 | 35.84 |
| 2005 | 0 | -5.53 | |
| 2004 | 550.23 | 571.88 | 499.59 |
| 2003 | 0 | -31.42 | |
| 2002 | 91.36 | 116.65 | 57.96 |