| 时间 | 平均 | 最高 | 最低 |
|---|---|---|---|
| 2019 | 42.78 | 87.14 | 15.15 |
| 2018 | 16.85 | 22.32 | 12.1 |
| 2017 | 13.82 | 17.52 | 11.84 |
| 2016 | 14.15 | 17.11 | 11.96 |
| 2015 | 18.91 | 33.74 | 11.19 |
| 2014 | 9.20 | 11.81 | 7.46 |
| 2013 | 8.91 | 12.27 | 7.51 |
| 2012 | 8.53 | 14.75 | 5.9 |
| 2011 | 12.62 | 20.78 | 7.25 |
| 2010 | 24.57 | 40.12 | 15.25 |
| 2009 | 23.30 | 38.25 | 14.59 |
| 2008 | 23.22 | 47.4 | 11.54 |
| 2007 | 37.39 | 48.25 | 23.7 |
| 2006 | 31.26 | 44.03 | 21.37 |
| 2005 | 44.38 | 66.95 | 32.02 |
| 2004 | 100.01 | 163.31 | 60.68 |
| 2003 | 130.04 | 178.68 | 101.4 |
| 2002 | 0.00 | -109.59 | |
| 2001 | 45.10 | 54.25 | 35.34 |
| 2000 | 43.98 | 49.86 | 37.72 |
| 1999 | 34.10 | 44.71 | 25.31 |
| 1998 | 38.97 | 49.85 | 32.92 |