| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2019 | 0.00 | -3.89 | |
| 2018 | 2,858.16 | 3479.91 | 2271.45 |
| 2017 | 1,198.45 | 4375.06 | 276.75 |
| 2016 | 0.00 | -12.63 | |
| 2015 | 0.00 | -16.21 | |
| 2014 | 0.00 | -7.47 | |
| 2013 | 64.47 | 72.83 | 55.61 |
| 2012 | 0.00 | -5.07 | |
| 2011 | 40.31 | 49.61 | 32.1 |
| 2010 | 242.91 | 459.85 | 28.94 |
| 2009 | 266.49 | 461.8 | 103.19 |
| 2008 | 183.08 | 371.77 | 76.63 |
| 2007 | 295.81 | 559.32 | 204.68 |
| 2006 | 155.11 | 278.6 | 21.5 |
| 2005 | 30.77 | 45.25 | 20.4 |
| 2004 | 0.00 | -7.95 | |
| 2003 | 858.93 | 932.96 | 768.84 |
| 2002 | 59.58 | 88.25 | 42.09 |
| 2001 | 44.37 | 58.41 | 34.4 |
| 2000 | 31.84 | 40.42 | 23.99 |
| 1999 | 32.30 | 39.77 | 25.81 |