| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2019 | 48.91 | 92.22 | 24.7 |
| 2018 | 26.93 | 48.51 | 9.41 |
| 2017 | 0.00 | -3.08 | |
| 2016 | 126.81 | 136.52 | 113.15 |
| 2015 | 0.00 | -4.48 | |
| 2014 | 36.91 | 69.25 | 16.02 |
| 2013 | 0.00 | -9.4 | |
| 2012 | 64.39 | 67.21 | 51.86 |
| 2011 | 94.31 | 191.38 | 38.15 |
| 2010 | 58.27 | 189.09 | 30.93 |
| 2009 | 49.64 | 136.74 | 11.47 |
| 2008 | 42.03 | 63.27 | 11.13 |
| 2007 | 29.01 | 52.55 | 11.73 |
| 2006 | 8.00 | 11.87 | 6.59 |
| 2005 | 9.08 | 12.99 | 6.22 |
| 2004 | 17.60 | 25.46 | 10.61 |
| 2003 | 21.25 | 25.33 | 17.14 |
| 2002 | 22.97 | 26.73 | 19.89 |
| 2001 | 31.22 | 40.05 | 24.87 |
| 2000 | 28.29 | 36.36 | 20.1 |
| 1999 | 24.02 | 31.49 | 17.82 |
| 1998 | 22.36 | 30.02 | 18.56 |