| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2019 | 0.00 | -9.77 | |
| 2018 | 261.70 | 356.87 | 167.79 |
| 2017 | 406.02 | 546.05 | 333.59 |
| 2016 | 0.00 | -4.11 | |
| 2015 | 286.51 | 633.43 | 67.5 |
| 2014 | 61.37 | 118.68 | 31.65 |
| 2013 | 94.04 | 161.02 | 39.24 |
| 2012 | 56.06 | 84.54 | 28.22 |
| 2011 | 60.80 | 108.61 | 24.93 |
| 2010 | 51.10 | 79.05 | 34.14 |
| 2009 | 31.58 | 65.16 | 5.44 |
| 2008 | 21.49 | 51.27 | 3.89 |
| 2007 | 38.30 | 64.54 | 17.24 |
| 2006 | 19.95 | 33.89 | 9.12 |
| 2005 | 9.42 | 12.79 | 6.87 |
| 2004 | 17.14 | 30.89 | 7.41 |
| 2003 | 29.31 | 36.3 | 23.38 |
| 2002 | 38.06 | 51.72 | 32.79 |
| 2001 | 41.90 | 52.32 | 31.5 |
| 2000 | 93.17 | 186.32 | 42.69 |
| 1999 | 25.77 | 44.34 | 18.7 |
| 1998 | 29.37 | 37.46 | 25.28 |