| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2019 | 6.88 | 9.39 | 5.31 |
| 2018 | 18.29 | 28.65 | 5.33 |
| 2017 | 49.11 | 143.52 | 23.19 |
| 2016 | 52.89 | 138.48 | 24.06 |
| 2015 | 29.97 | 41.91 | 17.43 |
| 2014 | 15.39 | 25.76 | 8.15 |
| 2013 | 35.48 | 78.47 | 19.63 |
| 2012 | 39.40 | 76.8 | 11.05 |
| 2011 | 36.66 | 85.54 | 11.03 |
| 2010 | 65.77 | 94.74 | 44.57 |
| 2009 | 154.60 | 338.65 | 87.17 |
| 2008 | 131.18 | 217.59 | 78.11 |
| 2007 | 354.94 | 832.54 | 134.09 |
| 2006 | 0.00 | -24.9 | |
| 2005 | 577.89 | 1273.4 | 116.02 |
| 2004 | 0.00 | -26.92 | |
| 2003 | 179.69 | 473.68 | 59.19 |
| 2002 | 84.12 | 110.21 | 52.76 |
| 2001 | 81.78 | 108 | 68.72 |
| 2000 | 121.04 | 172.07 | 77.17 |