| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2019 | 0.00 | -5.45 | |
| 2018 | 8.79 | 10.15 | 7.51 |
| 2017 | 13.21 | 18.91 | 9.67 |
| 2016 | 0.00 | -5.96 | |
| 2015 | 0.00 | -13.01 | |
| 2014 | 0.00 | -13.84 | |
| 2013 | 14.65 | 39.61 | 11.08 |
| 2012 | 16.02 | 28.59 | 8.84 |
| 2011 | 43.12 | 95.15 | 21.03 |
| 2010 | 74.06 | 133.08 | 26.89 |
| 2009 | 132.48 | 156 | 100.06 |
| 2008 | 0.00 | ||
| 2007 | 0.00 | -1.38 | |
| 2006 | 0.00 | -1.37 | |
| 2005 | 98.86 | 108.76 | 88.44 |
| 2004 | 95.12 | 125.16 | 66.05 |
| 2003 | 86.89 | 140.87 | 62.48 |
| 2002 | 205.98 | 319.96 | 102.94 |
| 2001 | 85.84 | 103.84 | 70.01 |