| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2019 | 102.70 | 132.49 | 71.02 |
| 2018 | 158.56 | 263.74 | 82.82 |
| 2017 | 153.75 | 189.16 | 119.3 |
| 2016 | 304.82 | 590.67 | 51.46 |
| 2015 | 139.20 | 254.7 | 73.72 |
| 2014 | 4,589.78 | 4817.38 | 4110.54 |
| 2013 | 0.00 | -18.54 | |
| 2012 | 374.08 | 414.36 | 307.22 |
| 2011 | 430.30 | 795.64 | 96.59 |
| 2010 | 95.83 | 134.53 | 60.2 |
| 2009 | 174.81 | 395.42 | 21.5 |
| 2008 | 37.66 | 71.3 | 17.3 |
| 2007 | 114.07 | 201.37 | 51.14 |
| 2006 | 135.72 | 323 | 53.16 |
| 2005 | 273.95 | 486.59 | 133.1 |
| 2004 | 878.15 | 1311.73 | 574.32 |
| 2003 | 0.00 | -49.96 | |
| 2002 | 592.40 | 682.16 | 482.28 |
| 2001 | 77.30 | 98.84 | 49.69 |
| 2000 | 89.06 | 115.79 | 69.52 |