| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2020 | 0 | -35.7 | |
| 2019 | 158.14 | 579.91 | 30.78 |
| 2018 | 81.59 | 139.19 | 30.27 |
| 2017 | 66.68 | 115.2 | 39.24 |
| 2016 | 142.62 | 536.66 | 30.85 |
| 2015 | 113.37 | 261.35 | 29.5 |
| 2014 | 0 | -3.06 | |
| 2013 | 83.23 | 106.7 | 71.94 |
| 2012 | 102.05 | 166.08 | 63.42 |
| 2011 | 60.69 | 135.59 | 20.04 |
| 2010 | 27.31 | 40.89 | 16.11 |
| 2009 | 30.11 | 40.65 | 14.67 |
| 2008 | 29.59 | 70.96 | 10.42 |
| 2007 | 65.01 | 133.67 | 29.02 |
| 2006 | 26.85 | 36.77 | 19.63 |
| 2005 | 20.34 | 24.93 | 15.17 |
| 2004 | 24.32 | 34.95 | 16.65 |
| 2003 | 32.71 | 55.23 | 21.12 |
| 2002 | 53.28 | 69.12 | 34.49 |
| 2001 | 32.38 | 37.2 | 27.82 |
| 2000 | 31.19 | 38.13 | 22.74 |
| 1999 | 25.35 | 30.76 | 19.75 |