| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2019 | 0.00 | -76.56 | |
| 2018 | 814.15 | 976.45 | 613.66 |
| 2017 | 1,414.31 | 5370.27 | 227.81 |
| 2016 | 890.65 | 968.33 | 805.87 |
| 2015 | 72.87 | 88.24 | 56.68 |
| 2014 | 70.39 | 99.51 | 44.63 |
| 2013 | 16.14 | 18.94 | 15.92 |
| 2012 | 14.01 | 16.92 | 11.25 |
| 2011 | 25.62 | 27.72 | 22.99 |
| 2010 | 24.62 | 34.04 | 16.92 |
| 2009 | 0.00 | -5.48 | |
| 2008 | 56.21 | 77.04 | 31.78 |
| 2007 | 61.92 | 98.32 | 46.6 |
| 2006 | 0.00 | -0.61 | |
| 2005 | 27.48 | 34.94 | 17.98 |
| 2004 | 23.16 | 48.59 | 8.37 |
| 2003 | 0.00 | -3.43 | |
| 2002 | 0.00 | -13.75 | |
| 2001 | 302.10 | 645.22 | 85.97 |